{ "apiVersion": 1, "kind": "work-order", "purpose": "Taking the firearm apart for a job such as refinishing, and putting it back together to specification.", "firearm": { "slug": "ruger-pc-carbine", "name": "Ruger PC Carbine", "manufacturer": { "id": "ruger", "name": "Sturm, Ruger & Co." }, "category": "pistol-caliber-carbine", "action": "blowback", "calibers": [ "9x19mm Parabellum", ".40 S&W" ], "alsoKnownAs": [ "PC9", "PC Charger (pistol variant)" ], "coversAlso": [ "Ruger PC Charger (pistol variant)", "Ruger PC Carbine in .40 S&W" ], "page": "firearms/ruger-pc-carbine.html", "bundle": "api/v1/firearms/ruger-pc-carbine.json", "lastUpdated": "2026-10-29" }, "notices": [ "This work order is written for the Ruger PC Carbine. It is reported to cover Ruger PC Charger (pistol variant); Ruger PC Carbine in .40 S&W — if the firearm on the bench is one of those, check the torque notes: values do not always carry over." ], "disclaimer": { "headline": "Read this before you use anything here.", "points": [ "This is a guide, not an authority. Entries are compiled from manufacturer manuals, technical manuals, published references, and community knowledge. Some of it comes from sources that are not authoritative, and some of it may simply be wrong.", "Always consult the manufacturer's manual for your specific firearm and serial-number range. Manufacturers change designs mid-production without renaming the model. The manual that shipped with your firearm outranks anything on this site.", "Consult a licensed gunsmith for anything beyond routine field stripping and cleaning, for any firearm you are unsure about, and for any procedure marked as gunsmith-recommended here.", "Treat every firearm as loaded. Verify it is unloaded, with the magazine removed and the chamber physically and visually checked, before any procedure in this database. Point it in a safe direction the entire time.", "Disassembly can damage a firearm or injure you. Springs are under tension, parts can launch, and reassembling a firearm incorrectly can make it unsafe to fire in a way that is not obvious from the outside. If a reassembled firearm does not pass a function check, stop and see a gunsmith.", "Torque values are shown in two groups. Values from the manufacturer or the issuing military are shown as such, with the document they came from. Values reported by anyone else — parts makers, gunsmithing publishers, articles, forums — are shown separately with who said them, how reliable that source is, and their exact words. Those are not specifications. Confirm any torque value with the manufacturer or a licensed gunsmith before relying on it.", "Nothing here is legal advice. Firearms law varies by country, state, and city, and some modifications or configurations are regulated or prohibited. You are responsible for knowing and following the law where you are.", "No warranty of any kind. Contributors and maintainers accept no liability for damage, injury, or loss arising from use of this material." ], "page": "disclaimer.html", "legal": { "summary": "Legal notice: this material is third-party information compiled from sources of varying reliability and is provided for general informational and educational purposes only. It is not gunsmithing, technical, safety or legal advice, it is not verified or endorsed by any manufacturer, and it must not be taken as fact. Any work on a firearm beyond the routine field stripping described in its own owner's manual should be performed only by a licensed and insured gunsmith. You use this material entirely at your own risk. Fundamental Build LLC and the project's contributors make no warranty of any kind and accept no liability for death, injury, damage or loss arising from its use. Full terms: LEGAL.md.", "page": "legal.html", "notice": "https://github.com/Fundamental-build-LLC/Pew-Takedown/blob/main/LEGAL.md" } }, "sourcing": { "confidence": "high", "verification": "manufacturer-manual-verified" }, "manufacturerDisassembly": { "status": "published", "limit": null, "statement": null, "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "31", "pdfPage": 31, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=31", "quote": null } }, "recalls": [], "shopTier": { "tier": 2, "group": "rifle", "rating": "Pew-Takedown editorial rating (1 easy – 3 hardest), not the manufacturer's", "reason": "96 pieces, which is high for a long gun, with about six plungers or detents. Most of it goes in order. The traps are a flying extractor, a heavy bolt spring, and the takedown adjustment knob, which has to be re-set for lock-up.", "confidence": "medium", "partCount": { "value": 86, "kind": "line-items", "covers": "Complete carbine (86 line items)", "basis": "manufacturer-parts-list", "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "51–52", "pdfPage": 51, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=51", "quote": "86 Button Head Screws" } }, "painPoints": [ { "issue": "The extractor and its spring fly out of the bolt when the extractor pin is drifted unless they are held.", "during": "disassembly", "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "CAUTION: The extractor is under spring tension and may “fly” out of the bolt if it is not held in place during removal of the extractor pin." } }, { "issue": "The bolt runs on a heavy recoil spring and slams shut on fingers.", "during": "both", "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "CAUTION: The bolt is under heavy spring tension and can injure fingers if it were to slam shut!" } } ], "minutes": { "strip": 45, "rebuild": 65, "basis": "estimated", "note": "Takedown, bolt (extractor), trigger guard assembly, chassis/forend and handguard screws. Many parts but mostly in order.", "source": null }, "stripScope": [ { "assembly": "Barrel / forend", "removes": [ "barrel assembly (takedown)", "adjustment knob", "handguard / forend and screws", "sights" ] }, { "assembly": "Receiver", "removes": [ "bolt and recoil spring", "charging handle", "trigger guard assembly (cross pins)", "magazine release and latch" ] }, { "assembly": "Trigger guard assembly", "removes": [ "hammer, strut, spring", "trigger, plunger, spring", "disconnector and spring", "safety and detent plunger", "bolt stop / last round parts" ] }, { "assembly": "Bolt", "removes": [ "extractor pin, extractor, spring", "firing pin and spring", "bolt head retaining pins" ] } ], "hardware": { "pins": 12, "springs": 9, "detents": 10, "basis": "counted from the manufacturer's parts list (one per key number unless a quantity is given)" }, "specialTools": [ { "tool": "5/32 in and 1/8 in hex wrenches", "usedFor": "Forend, stock and handguard screws" }, { "tool": "pin punches", "usedFor": "Trigger guard cross pins and extractor pin" } ], "fitOnRebuild": [ { "check": "Barrel lock-up tension (adjustment knob)", "why": "The knob must be re-set for firm lock-up.", "source": null }, { "check": "Seat the barrel by slingshotting the bolt", "why": "Ruger directs it after every barrel installation.", "source": null }, { "check": "Function check (safety, trigger reset, feeding, extraction)", "why": "Standard after any detail strip. No single source.", "source": null } ], "assessed": "2026-10-29" }, "videos": [ { "title": "Ruger® PC Carbine™ Disassembly Tech Tip", "url": "https://www.youtube.com/watch?v=U6LLiKuM4Kc", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip" ], "appliesTo": "Ruger PC Carbine", "published": "2021-11-19", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Carbine™ Reassembly Tech Tip", "url": "https://www.youtube.com/watch?v=h_o_kVWlYKY", "platform": "youtube", "embedUrl": null, "shows": [ "reassembly" ], "appliesTo": "Ruger PC Carbine", "published": "2021-11-19", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Carbine™ Cleaning Tech Tip", "url": "https://www.youtube.com/watch?v=Ts9vq9vxcZg", "platform": "youtube", "embedUrl": null, "shows": [ "cleaning" ], "appliesTo": "Ruger PC Carbine", "published": "2021-11-19", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Carbine™ Bolt Lock Assembly Tech Tip", "url": "https://www.youtube.com/watch?v=r9C6b8tmNhE", "platform": "youtube", "embedUrl": null, "shows": [ "detail-reassembly" ], "appliesTo": "Ruger PC Carbine", "published": "2024-10-03", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Charger™ Disassembly Tech Tip", "url": "https://www.youtube.com/watch?v=bMEl8JJ7cLM", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip" ], "appliesTo": "Ruger PC Charger (pistol variant)", "published": "2021-11-23", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Charger™ Reassembly Tech Tip", "url": "https://www.youtube.com/watch?v=zPLlE9nhxm0", "platform": "youtube", "embedUrl": null, "shows": [ "reassembly" ], "appliesTo": "Ruger PC Charger (pistol variant)", "published": "2021-11-23", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" } ], "configurations": [], "tools": [ { "name": "5/32\" hex wrench", "required": false, "usedFor": "Loosening the forend takedown screw and the two stock takedown screws. Not needed for the barrel takedown itself." }, { "name": "1/8\" hex wrench", "required": false, "usedFor": "Removing the four handguard screws on handguard-equipped models." }, { "name": "T10 Torx wrench", "required": false, "usedFor": "Removing the two front sight screws on handguard-equipped models." } ], "phases": [ { "id": "clear", "title": "Clear and make safe", "steps": [ { "n": 1, "instruction": "Point the muzzle in a safe direction and keep your finger off the trigger." }, { "n": 2, "instruction": "Press the magazine release and remove the magazine." }, { "n": 3, "instruction": "Pull the charging handle fully to the rear and lock the bolt open by pressing up on the bolt stop." }, { "n": 4, "instruction": "Visually confirm there is no cartridge in the chamber, using a light.", "warning": "Ruger's own disassembly warning is explicit: unload the firearm before cleaning, lubrication, disassembly or assembly." }, { "n": 5, "instruction": "Place the safety in the \"ON\" position if the hammer is cocked, and remove all live ammunition from the work area." } ], "videos": [] }, { "id": "disassemble", "title": "Disassemble", "videos": [ { "title": "Ruger® PC Carbine™ Disassembly Tech Tip", "url": "https://www.youtube.com/watch?v=U6LLiKuM4Kc", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip" ], "appliesTo": "Ruger PC Carbine", "published": "2021-11-19", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Charger™ Disassembly Tech Tip", "url": "https://www.youtube.com/watch?v=bMEl8JJ7cLM", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip" ], "appliesTo": "Ruger PC Charger (pistol variant)", "published": "2021-11-23", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" } ], "procedures": [ { "procedure": "field-strip", "title": "Field Strip — Barrel Assembly Removal", "level": "field-strip", "configuration": false, "steps": [ { "n": 1, "instruction": "Complete the Clear and Make Safe procedure. Leave the bolt locked back — the barrel assembly will not release with the bolt closed." }, { "n": 2, "instruction": "Push the locking lever forward to unlock the barrel assembly.", "warning": "Forward, not rearward. The lever unlocks the joint; it does not need to be pushed back or pulled." }, { "n": 3, "instruction": "While holding the locking lever forward, rotate the barrel assembly counterclockwise and pull it out of the receiver.", "tip": "Counterclockwise to remove, clockwise to install. Ruger illustrates both directions.", "partsFreed": [ "Barrel assembly" ] }, { "n": 4, "instruction": "Retract the charging handle fully rearward and slowly release it until the bolt comes to rest in its forward position.", "warning": "Do not leave the bolt locked back on the separated receiver." }, { "n": 5, "instruction": "Clean the bore from the breech end of the separated barrel, and clean the bolt face, chamber and receiver interior.", "tip": "This is the extent of disassembly Ruger describes for routine inspection, cleaning and lubrication." } ] }, { "procedure": "barrel-forend", "title": "Barrel / Forend Separation", "level": "field-strip", "configuration": false, "steps": [ { "n": 1, "instruction": "Complete the barrel assembly removal first." }, { "n": 2, "instruction": "Use a 5/32\" hex wrench to loosen — do not remove — the takedown screw in the forend." }, { "n": 3, "instruction": "Slide the barrel out of the forend.", "partsFreed": [ "Forend" ] }, { "n": 4, "instruction": "To reassemble, insert the barrel into the forend and tighten the takedown screw with the 5/32\" hex wrench." } ] } ] }, { "id": "refinish", "title": "Refinish", "components": [ { "name": "Barrel assembly", "procedure": "field-strip", "level": "field-strip", "step": 3 }, { "name": "Forend", "procedure": "barrel-forend", "level": "field-strip", "step": 3 } ], "manufacturerPartsList": { "parts": 86, "scope": "Ruger PC Carbine. Exploded views on pp. 53–57" }, "partsDiagrams": [], "materials": [ { "component": "Receiver", "material": "Aluminum Alloy", "finish": "Type III Hard-Coat Anodized", "appliesTo": "Model 19100", "note": null, "source": { "title": "Ruger PC Carbine Autoloading Rifle — Specifications (model 19100)", "publisher": "Sturm, Ruger & Co.", "reliability": "primary", "url": "https://ruger.com/products/pcCarbine/specSheets/19100.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Receiver Material Aluminum Alloy … Receiver Finish Type III Hard-Coat Anodized" } }, { "component": "Receiver", "material": "aerospace-grade aluminum billet", "finish": "Type III hard-coat anodized", "appliesTo": "Model 19100", "note": null, "source": { "title": "Ruger PC Carbine Autoloading Rifle — Specifications (model 19100)", "publisher": "Sturm, Ruger & Co.", "reliability": "primary", "url": "https://ruger.com/products/pcCarbine/specSheets/19100.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "CNC-machined from an aerospace-grade aluminum billet, the receiver includes an integrated Picatinny-style rail and is Type III hard-coat anodized for maximum durability." } }, { "component": "Barrel", "material": "chrome-moly steel", "finish": null, "appliesTo": "Model 19100", "note": null, "source": { "title": "Ruger PC Carbine Autoloading Rifle — Specifications (model 19100)", "publisher": "Sturm, Ruger & Co.", "reliability": "primary", "url": "https://ruger.com/products/pcCarbine/specSheets/19100.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Cold hammer-forged, chrome-moly steel barrel with ultra-precise rifling provides exceptional accuracy and longevity." } }, { "component": "Bolt", "material": "chrome-moly steel", "finish": null, "appliesTo": "Model 19100", "note": null, "source": { "title": "Ruger PC Carbine Autoloading Rifle — Specifications (model 19100)", "publisher": "Sturm, Ruger & Co.", "reliability": "primary", "url": "https://ruger.com/products/pcCarbine/specSheets/19100.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Bolt is machined from heat treated, chrome-moly steel to ensure strength, structural integrity and durability." } }, { "component": "Stock", "material": "glass-filled nylon", "finish": null, "appliesTo": "Model 19100", "note": null, "source": { "title": "Ruger PC Carbine Autoloading Rifle — Specifications (model 19100)", "publisher": "Sturm, Ruger & Co.", "reliability": "primary", "url": "https://ruger.com/products/pcCarbine/specSheets/19100.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Stock Black Synthetic … Durable, glass-filled nylon synthetic buttstock features a proprietary texture for enhanced control and an integral sling mount for rapid sling attachment ." } } ], "note": "The components the procedures above separate. Coating, masking and cure are outside this database; follow your coating system's instructions. A part the manufacturer marks \"factory fit\" should not be swapped or reworked." }, { "id": "reassemble", "title": "Reassemble", "videos": [ { "title": "Ruger® PC Carbine™ Reassembly Tech Tip", "url": "https://www.youtube.com/watch?v=h_o_kVWlYKY", "platform": "youtube", "embedUrl": null, "shows": [ "reassembly" ], "appliesTo": "Ruger PC Carbine", "published": "2021-11-19", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Carbine™ Bolt Lock Assembly Tech Tip", "url": "https://www.youtube.com/watch?v=r9C6b8tmNhE", "platform": "youtube", "embedUrl": null, "shows": [ "detail-reassembly" ], "appliesTo": "Ruger PC Carbine", "published": "2024-10-03", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" }, { "title": "Ruger® PC Charger™ Reassembly Tech Tip", "url": "https://www.youtube.com/watch?v=zPLlE9nhxm0", "platform": "youtube", "embedUrl": null, "shows": [ "reassembly" ], "appliesTo": "Ruger PC Charger (pistol variant)", "published": "2021-11-23", "note": null, "channel": { "id": "UC9Ge9rpeTPQxnjlMH0VDwIA", "name": "RugerFirearms", "url": "https://www.youtube.com/@RugerFirearms", "owner": "Sturm, Ruger & Co., Inc." }, "accessed": "2026-10-15" } ], "procedures": [ { "procedure": "reassembly", "title": "Reassembly and Lock-Up Adjustment", "configuration": false, "steps": [ { "n": 1, "instruction": "If this is the first time the barrel assembly is being installed, or the fit needs correcting, loosen the adjustment knob by turning it counterclockwise as far as finger pressure allows.", "tip": "Ruger's instruction: after the first adjustment, later installations need only the insert-and-rotate step." }, { "n": 2, "instruction": "Lock the bolt back with the bolt stop engaged." }, { "n": 3, "instruction": "Insert the barrel assembly into the receiver and rotate it clockwise until it locks into place.", "warning": "Clockwise to install. The locking lever does not need to be held for installation." }, { "n": 4, "instruction": "Tighten the adjustment knob by rotating it clockwise until the barrel assembly is securely connected.", "warning": "You should feel some resistance turning the barrel assembly into the receiver, but it should not be difficult. If it is, remove the assembly and back the knob off." }, { "n": 5, "instruction": "Dry cycle the action to seat the barrel assembly: with no magazine and an empty chamber, pull the bolt handle fully to the rear while holding the bolt lock up, then release it and let it slingshot forward. Repeat two or three times.", "tip": "Ruger states this seating cycle gives the best fired-shot accuracy after a barrel installation." }, { "n": 6, "instruction": "Perform the function check before any live firing." } ], "instruction": null } ] }, { "id": "torque", "title": "Torque", "coverage": "sourced", "manufacturer": [ { "fastener": "Stock takedown screws (2)", "appliesTo": null, "qualifier": "exact", "value": 65, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 7.3, "in-lb": 65, "ft-lb": 5.4 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "18", "pdfPage": 18, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=18", "quote": "Secure the two takedown screws to 65 inch-pounds with a 5/32” hex wrench." } }, { "fastener": "Magazine release cap head screw", "appliesTo": null, "qualifier": "exact", "value": 15, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.7, "in-lb": 15, "ft-lb": 1.2 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "19", "pdfPage": 19, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=19", "quote": "The magazine release button compresses the latch stud spring and is retained by the cap head screw, torqued to 15 inch-pounds." } }, { "fastener": "Charging handle cap screw", "appliesTo": null, "qualifier": "exact", "value": 65, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 7.3, "in-lb": 65, "ft-lb": 5.4 }, "valueMax": null }, "sequence": "With the bolt closed, align the conical base of the charging handle with the countersink on the bolt through the receiver slot before tightening. Ruger says to verify this torque every 1,000 rounds or whenever the charging handle is removed and reinstalled.", "threadlocker": null, "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "20", "pdfPage": 20, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=20", "quote": "Tighten the cap screw to 65 inch-pounds to ensure the handle is secure." } }, { "fastener": "Handguard screws (4)", "appliesTo": "Models with handguard", "qualifier": "exact", "value": 45, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 5.1, "in-lb": 45, "ft-lb": 3.7 }, "valueMax": null }, "sequence": "Slide the handguard on without letting it touch the barrel, sight cutouts at 12 o'clock, then tighten the four screws in an alternating sequence with a 1/8\" hex wrench.", "threadlocker": null, "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "40", "pdfPage": 40, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=40", "quote": "Torque each of the handguard screws to 45 in-lbs." } }, { "fastener": "Front sight screws (2)", "appliesTo": "Models with handguard", "qualifier": "exact", "value": 20, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 2.3, "in-lb": 20, "ft-lb": 1.7 }, "valueMax": null }, "sequence": "Slide the front sight on from the muzzle end and use a T10 Torx wrench.", "threadlocker": null, "source": { "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "page": "41", "pdfPage": 41, "pageUrl": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf#page=41", "quote": "Torque each of the front screws to 20 in-lbs." } } ], "reported": [ { "fastener": "Receiver screws (2), 5/32\" hex", "appliesTo": "Magpul PC Backpacker Stock (MAG1076) on a Ruger PC Carbine (9mm / .40 S&W)", "qualifier": "exact", "value": 65, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 7.3, "in-lb": 65, "ft-lb": 5.4 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Magpul MAG1076 PC Backpacker Stock (Ruger PC Carbine) — Installation Instructions", "publisher": "Magpul Industries", "reliability": "secondary", "url": "https://magpul.com/media/wysiwyg/Instructions/MAG1076_PC_Backpacker_Stock_INSRT.pdf", "page": "PDF p. 1 of 3", "pdfPage": 1, "pageUrl": "https://magpul.com/media/wysiwyg/Instructions/MAG1076_PC_Backpacker_Stock_INSRT.pdf#page=1", "quote": "use a 5/32” hex key to install the two receiver screws, and tighten to 65 in-lbs. according to manufacturer’s instructions." } }, { "fastener": "Forend screw (forend to barrel assembly), 5/32\" hex", "appliesTo": "Magpul PC Backpacker Stock (MAG1076) on a Ruger PC Carbine (9mm / .40 S&W)", "qualifier": "exact", "value": 65, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 7.3, "in-lb": 65, "ft-lb": 5.4 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Magpul MAG1076 PC Backpacker Stock (Ruger PC Carbine) — Installation Instructions", "publisher": "Magpul Industries", "reliability": "secondary", "url": "https://magpul.com/media/wysiwyg/Instructions/MAG1076_PC_Backpacker_Stock_INSRT.pdf", "page": "PDF p. 1 of 3", "pdfPage": 1, "pageUrl": "https://magpul.com/media/wysiwyg/Instructions/MAG1076_PC_Backpacker_Stock_INSRT.pdf#page=1", "quote": "Using a 5/32” hex key, tighten the forend screw to 65 in-lbs." } }, { "fastener": "Receiver-to-chassis 12-24 x 3/4 hex screws (2; replace factory stock screws)", "appliesTo": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF)", "qualifier": "exact", "value": 55, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 6.2, "in-lb": 55, "ft-lb": 4.6 }, "valueMax": null }, "sequence": null, "threadlocker": "Loctite (instructions: 'Degrease screws prior to installing loctite')", "source": { "title": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf#page=1", "quote": "Drop the two provided 12-24x3/4 hex screw in the screw holes and tighten to 55 inch/pounds, securing receiver to chassis." } }, { "fastener": "AR grip adaptor 1/4-20 x 1.5\" screw", "appliesTo": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF)", "qualifier": "exact", "value": 35, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 4, "in-lb": 35, "ft-lb": 2.9 }, "valueMax": null }, "sequence": null, "threadlocker": "Blue Loctite may be used", "source": { "title": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf#page=1", "quote": "install the ¼-20x1.5” screw from the top and torque screw to 35 inch/pounds." } }, { "fastener": "AR grip screw", "appliesTo": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF)", "qualifier": "exact", "value": 45, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 5.1, "in-lb": 45, "ft-lb": 3.7 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf#page=1", "quote": "Install AR style grip with provided grip screw/washer and torque grip screw to 45 inch/pounds." } }, { "fastener": "Hand guard bottom retaining screw (replaces factory forearm screw)", "appliesTo": "Midwest Industries Ruger PC Carbine Extended M-Lok Hand Guard (MI-CRPC9-X)", "qualifier": "exact", "value": 55, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 6.2, "in-lb": 55, "ft-lb": 4.6 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Ruger PC Carbine Extended M-Lok Hand Guard (MI-CRPC9-X) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-Extended-M-Lok-Handguard-MI-CRPC9-X-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-Extended-M-Lok-Handguard-MI-CRPC9-X-Instructions.pdf#page=1", "quote": "Then tighten the bottom hand guard retaining screw to 55-inch/pounds." } }, { "fastener": "M-Lok rail section screws", "appliesTo": "Midwest Industries Ruger PC Carbine Extended M-Lok Hand Guard (MI-CRPC9-X)", "qualifier": "exact", "value": 15, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.7, "in-lb": 15, "ft-lb": 1.2 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Ruger PC Carbine Extended M-Lok Hand Guard (MI-CRPC9-X) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-Extended-M-Lok-Handguard-MI-CRPC9-X-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-Extended-M-Lok-Handguard-MI-CRPC9-X-Instructions.pdf#page=1", "quote": "Install M-Lok rails to the outside of the handguard, torque M-Lok screws to 15 in/lbs." } }, { "fastener": "M-Lok mount cross bolt (on factory lower forearm rail)", "appliesTo": "Midwest Industries MI-PC9M M-Lok Mount on Ruger PC Carbine models 19100, 19101, 19102", "qualifier": "exact", "value": 50, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 5.6, "in-lb": 50, "ft-lb": 4.2 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries MI-PC9M Ruger PC-9 M-Lok Mount (models 19100, 19101, 19102) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-M-Lok-Mount-MI-PC9M-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-M-Lok-Mount-MI-PC9M-Instructions.pdf#page=1", "quote": "Push the cross bolt through the hole and torque the bolt to 50 inch/pounds." } }, { "fastener": "Bolt (charging) handle screw (factory screw re-used)", "appliesTo": "Midwest Industries Ruger PC9 Bolt Handle on a Ruger PC Carbine", "qualifier": "exact", "value": 65, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 7.3, "in-lb": 65, "ft-lb": 5.4 }, "valueMax": null }, "sequence": "Re-check the torque after 1k rounds (instructions step 9).", "threadlocker": null, "source": { "title": "Midwest Industries Ruger PC9 Bolt Handle — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Bolt-Handle-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Bolt-Handle-Instructions.pdf#page=1", "quote": "Check to make sure the bolt handle is seated and aligned correctly, torque the screw to 65 inch/pounds." } }, { "fastener": "Take down block bolts (factory bolts re-used)", "appliesTo": "Midwest Industries Ruger PC Charger Handguard (MI-RC-4.875) on the Ruger PC Charger (pistol variant)", "qualifier": "exact", "value": 45, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 5.1, "in-lb": 45, "ft-lb": 3.7 }, "valueMax": null }, "sequence": null, "threadlocker": "Blue thread locker", "source": { "title": "Midwest Industries Ruger PC9 Charger Handguard (MI-RC-4.875) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf#page=1", "quote": "apply blue thread loc to the take down block bolts and install the MI take down block -- torque the bolts to 45-inch pounds." } }, { "fastener": "Handguard bolt", "appliesTo": "Midwest Industries Ruger PC Charger Handguard (MI-RC-4.875) on the Ruger PC Charger (pistol variant)", "qualifier": "exact", "value": 30, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 3.4, "in-lb": 30, "ft-lb": 2.5 }, "valueMax": null }, "sequence": null, "threadlocker": "Blue Loctite", "source": { "title": "Midwest Industries Ruger PC9 Charger Handguard (MI-RC-4.875) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf#page=1", "quote": "Apply blue Loctite to the handguard bolt. Install the bolt and torque to 30-inch pounds." } }, { "fastener": "M-Lok rail section bolts", "appliesTo": "Midwest Industries Ruger PC Charger Handguard (MI-RC-4.875) on the Ruger PC Charger (pistol variant)", "qualifier": "exact", "value": 15, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.7, "in-lb": 15, "ft-lb": 1.2 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Ruger PC9 Charger Handguard (MI-RC-4.875) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf#page=1", "quote": "The M-Lok rail section may be installed in your choice of locations torque the bolts to 15-inch pounds." } } ], "notes": "From Ruger's PC Carbine manual. The barrel assembly itself is not torqued: it rotates into the receiver and its lock-up is set with the adjustment knob, as described in the reassembly procedure." }, { "id": "function-check", "title": "Function check", "checks": [ "First be sure there is no ammunition in the chamber or magazine, and perform every check with no magazine inserted.", "Bolt: pull the bolt fully to the rear and release it. It should travel freely without binding. Repeat twice more.", "Safety: pull the bolt fully to the rear and release it to cock the hammer. A distinct click should be heard when the safety is moved to either position.", "With the safety \"on\", attempt to pull the trigger. The trigger should not move and the hammer should not fall.", "Move the safety \"off\", point in a safe direction and pull the trigger. An audible click indicates the hammer has fallen. Repeat the sequence twice more.", "Bolt lock: retract the charging handle fully, press up on the bolt stop, then release the handle. It should move forward a fraction of an inch and be held open.", "Retract the charging handle fully again and release. The bolt stop should drop and the bolt should run forward.", "Confirm the barrel assembly is locked: it must not rotate or pull free by hand." ], "videos": [] } ], "troubleshooting": [ { "symptom": "The barrel assembly will not go into the receiver, or will not rotate to lock.", "cause": "The bolt is not locked back with the bolt stop engaged, or the adjustment knob is screwed in too far.", "fix": "Lock the bolt back and engage the bolt stop, then try again. If it still will not seat, back the adjustment knob off counterclockwise, install the barrel, and retighten the knob.", "damageRisk": "Forcing the barrel assembly against a closed bolt bears on the bolt face and the barrel block." }, { "symptom": "The barrel assembly goes in and locks, but feels loose or rattles.", "cause": "The adjustment knob is backed off too far. It sets the lock-up tension and stays wherever it was left.", "fix": "Remove the barrel assembly, tighten the adjustment knob clockwise a little, and reinstall. Ruger's target is noticeable resistance as the barrel turns in, without it being difficult.", "damageRisk": "Firing with a loose barrel lock-up costs accuracy and puts the joint under loads it was not adjusted for.", "seeGunsmith": false }, { "symptom": "The barrel assembly will not come out even with the locking lever pushed forward.", "cause": "The bolt is not locked back, or the assembly is being rotated the wrong way.", "fix": "Lock the bolt back, hold the locking lever forward, and rotate the barrel counterclockwise — the opposite of the direction that installed it.", "damageRisk": "Levering on the barrel or forend to free it can bend the forend and mar the joint." }, { "symptom": "After reassembly the first shots group poorly.", "cause": "The barrel assembly has not been seated.", "fix": "With the rifle empty and no magazine, slingshot the bolt from fully rearward two or three times, as Ruger directs after every barrel installation." } ], "sources": [ { "n": 1, "id": "ruger-pc-carbine-manual", "title": "Ruger PC Carbine Instruction Manual", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger-docs.s3.amazonaws.com/_manuals/PC-Carbine.pdf", "accessed": "2026-09-15" }, { "n": 2, "id": "ruger-specs-5e3694", "title": "Ruger PC Carbine Autoloading Rifle — Specifications (model 19100)", "publisher": "Sturm, Ruger & Co.", "reliability": "primary", "url": "https://ruger.com/products/pcCarbine/specSheets/19100.html", "accessed": "2026-10-03" }, { "n": 3, "id": "magpul-industries-fd6da6", "title": "Magpul MAG1076 PC Backpacker Stock (Ruger PC Carbine) — Installation Instructions", "publisher": "Magpul Industries", "reliability": "secondary", "url": "https://magpul.com/media/wysiwyg/Instructions/MAG1076_PC_Backpacker_Stock_INSRT.pdf", "accessed": "2026-10-11" }, { "n": 4, "id": "midwest-industries-inc-38ea62", "title": "Midwest Industries Ruger PC Carbine Take-Down Chassis (MI-RPCC / MI-RPCCSF) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC-Carbine-Chassis-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 5, "id": "midwest-industries-inc-27fcd8", "title": "Midwest Industries Ruger PC Carbine Extended M-Lok Hand Guard (MI-CRPC9-X) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-Extended-M-Lok-Handguard-MI-CRPC9-X-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 6, "id": "midwest-industries-inc-ec43e5", "title": "Midwest Industries MI-PC9M Ruger PC-9 M-Lok Mount (models 19100, 19101, 19102) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-M-Lok-Mount-MI-PC9M-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 7, "id": "midwest-industries-inc-34afc6", "title": "Midwest Industries Ruger PC9 Bolt Handle — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Bolt-Handle-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 8, "id": "midwest-industries-inc-8a0cd7", "title": "Midwest Industries Ruger PC9 Charger Handguard (MI-RC-4.875) — Installation Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Ruger-PC9-Charger-MI-RC-4.875-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 9, "id": "pat-sturm-ruger-co-inc-015c0e", "title": "Ruger Patents", "publisher": "Sturm, Ruger & Co., Inc.", "reliability": "primary", "url": "https://ruger.com/micros/Patents/index.html", "accessed": "2026-10-13" } ] }