{ "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": "mossberg-patriot", "name": "Mossberg Patriot", "manufacturer": { "id": "mossberg", "name": "O.F. Mossberg & Sons" }, "category": "rifle", "action": "bolt-action", "calibers": [ ".308 Winchester", ".30-06 Springfield", "6.5 Creedmoor", ".300 Winchester Magnum" ], "alsoKnownAs": [ "Patriot Predator", "Patriot Synthetic" ], "coversAlso": [], "page": "firearms/mossberg-patriot.html", "bundle": "api/v1/firearms/mossberg-patriot.json", "lastUpdated": "2026-10-29" }, "notices": [ "O.F. Mossberg & Sons limits owner disassembly: Bolt removal from the receiver, and removal of the barreled action from the stock; nothing further.", "No manufacturer torque values are recorded. The values listed are reported by other sources, not the manufacturer — confirm them before use." ], "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": "medium", "verification": "community-reviewed" }, "manufacturerDisassembly": { "status": "limited", "limit": "Bolt removal from the receiver, and removal of the barreled action from the stock; nothing further.", "statement": "Mossberg says the bolt can be removed and the barreled action taken out of the stock, but further disassembly should be done by a certified gunsmith only.", "source": { "title": "Patriot Owner's Manual (doc 102353)", "publisher": "O.F. Mossberg & Sons, Inc.", "reliability": "primary", "url": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf", "page": "17", "pdfPage": 17, "pageUrl": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf#page=17", "quote": "The bolt can be removed from the barreled action, and the barreled action can be removed from the stock, but further disassembly should be performed by a certified gunsmith only." } }, "recalls": [], "shopTier": { "tier": 1, "group": "rifle", "rating": "Pew-Takedown editorial rating (1 easy – 3 hardest), not the manufacturer's", "reason": "48 parts in Mossberg's own list. The rifle comes out of the stock with two action screws, and nothing is timed or held under tension. Mossberg reserves bolt and trigger disassembly beyond that for gunsmiths, so a full strip of the LBA trigger and bolt is the only unknown.", "confidence": "medium", "partCount": { "value": 48, "kind": "line-items", "covers": "Complete rifle, removable-magazine models (48 line items, quantity 1 each; no part numbers)", "basis": "manufacturer-parts-list", "source": { "title": "Patriot Owner's Manual (doc 102353)", "publisher": "O.F. Mossberg & Sons, Inc.", "reliability": "primary", "url": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf", "page": "22–24", "pdfPage": 22, "pageUrl": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf#page=22", "quote": "48 PISTOL GRIP CAP COVER" } }, "painPoints": [ { "issue": "Mossberg stops the owner at bolt-out and action-out-of-stock. Everything further, including bolt and trigger internals, is gunsmith-only, so no factory detail-strip procedure exists.", "during": "both", "source": { "title": "Patriot Owner's Manual (doc 102353)", "publisher": "O.F. Mossberg & Sons, Inc.", "reliability": "primary", "url": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "The bolt can be removed from the barreled action, and the barreled action can be removed from the stock, but further disassembly should be performed by a cer- tified gunsmith only." } }, { "issue": "Several parts on the list are restricted to gunsmiths or the factory, so a lost or damaged spring cannot simply be reordered.", "during": "both", "source": { "title": "Patriot Owner's Manual (doc 102353)", "publisher": "O.F. Mossberg & Sons, Inc.", "reliability": "primary", "url": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "* Items on Parts List are reserved for qualified gunsmiths or the Authorized Product Center Only" } } ], "minutes": { "strip": 30, "rebuild": 45, "basis": "estimated", "note": "Stock off, bolt detail strip, bottom metal and magazine. The LBA trigger is left as a unit.", "source": null }, "stripScope": [ { "assembly": "Stock / bottom metal", "removes": [ "action screws", "trigger guard / floorplate", "magazine box, spring, follower", "swivel studs", "recoil pad or butt plate" ] }, { "assembly": "Bolt", "removes": [ "firing pin assembly (shroud, cocking piece, mainspring)", "extractor", "ejector and spring", "extractor detent ball" ] }, { "assembly": "Receiver", "removes": [ "trigger assembly (as a unit)", "bolt stop and spring", "safety (if receiver-mounted)", "scope bases / iron sights" ] } ], "hardware": { "pins": 3, "springs": 5, "detents": 1, "basis": "counted from the manufacturer's parts list (one per key number unless a quantity is given)" }, "specialTools": [ { "tool": "torque driver", "usedFor": "Action screws" }, { "tool": "bolt disassembly tool / vise", "usedFor": "Compressing the firing-pin spring" } ], "fitOnRebuild": [ { "check": "Action screw torque", "why": "Mossberg-type pillar/screw torque affects zero.", "source": null }, { "check": "Trigger function and safety check", "why": "The LBA trigger is gunsmith-only per Mossberg, so check, don't adjust.", "source": null }, { "check": "Re-zero sights or scope", "why": "Sights and optics come off for coating, and point of impact must be re-confirmed. This is a standard check, so no source.", "source": null } ], "assessed": "2026-10-29" }, "videos": [ { "title": "How To Mount a Scope at Home", "url": "https://www.youtube.com/watch?v=V-f9OLI3wqA", "platform": "youtube", "embedUrl": null, "shows": [ "adjustment" ], "appliesTo": "Mossberg Patriot (per description: 'mount a new scope on his Mossberg Patriot')", "published": "2022-10-19", "note": null, "channel": { "id": "UCgin5wRNdwlOY-Ocs4_qK4A", "name": "MOSSBERG", "url": "https://www.youtube.com/@MossbergCorp", "owner": "O.F. Mossberg & Sons, Inc. (also covers its Maverick Arms brand)" }, "accessed": "2026-10-15" } ], "configurations": [], "tools": [ { "name": "Bore guide", "required": true, "usedFor": "Cleaning from the breech without damaging the throat or the crown.", "substitute": "There is no good substitute. A rod run into an unguided chamber scrapes the throat." }, { "name": "Hex key or screwdriver matching the action screws", "required": false, "usedFor": "Removing the barrelled action from the stock. Not needed for routine cleaning." }, { "name": "Torque wrench", "required": false, "usedFor": "Reinstalling action screws to a consistent value, which is an accuracy variable on every bolt rifle." } ], "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": "Place the safety in the on position." }, { "n": 3, "instruction": "Lift the bolt handle and draw the bolt fully rearward, extracting and ejecting any chambered round." }, { "n": 4, "instruction": "Remove the detachable magazine.", "partsFreed": [ "Magazine contents" ] }, { "n": 5, "instruction": "Inspect the chamber and magazine well with a light and physically confirm the chamber is empty.", "warning": "Look and feel. Both, every time." }, { "n": 6, "instruction": "Remove all live ammunition from the work area." } ], "videos": [] }, { "id": "disassemble", "title": "Disassemble", "videos": [], "procedures": [ { "procedure": "field-strip", "title": "Field Strip", "level": "field-strip", "configuration": false, "steps": [ { "n": 1, "instruction": "Complete the Clear and Make Safe procedure." }, { "n": 2, "instruction": "Check your rifle's own manual for whether the bolt releases with the safety on or off before you move it.", "warning": "The rifle is unloaded at this point. Keep the muzzle in a safe direction regardless.", "tip": "Makers genuinely disagree here. Of the bolt rifles checked against factory manuals so far, Winchester wants the safety in its middle detent, Browning and Ruger want it fully ON, and Savage and CZ want it OFF. Guessing is how people end up forcing a bolt that is simply locked." }, { "n": 3, "instruction": "Lift the bolt handle and draw the bolt fully rearward." }, { "n": 4, "instruction": "Press the bolt release at the rear of the receiver and withdraw the bolt rearward.", "partsFreed": [ "Bolt assembly" ] }, { "n": 5, "instruction": "Clean the bore from the breech using a bore guide, and clean the bolt face, lugs, and chamber.", "warning": "Always use a bore guide." } ] }, { "procedure": "stock-removal", "title": "Remove the Barrelled Action from the Stock", "level": "detail-strip", "configuration": false, "steps": [ { "n": 1, "instruction": "Verify the rifle is unloaded and remove the bolt and magazine." }, { "n": 2, "instruction": "Remove the action screws from the bottom of the stock, noting which screw came from which hole.", "tip": "They are often different lengths.", "partsFreed": [ "Action screws", "Floorplate or magazine assembly" ] }, { "n": 3, "instruction": "Lift the barrelled action out of the stock.", "partsFreed": [ "Stock" ] } ] } ] }, { "id": "refinish", "title": "Refinish", "components": [ { "name": "Bolt assembly", "procedure": "field-strip", "level": "field-strip", "step": 4 }, { "name": "Action screws", "procedure": "stock-removal", "level": "detail-strip", "step": 2 }, { "name": "Floorplate or magazine assembly", "procedure": "stock-removal", "level": "detail-strip", "step": 2 }, { "name": "Stock", "procedure": "stock-removal", "level": "detail-strip", "step": 3 } ], "manufacturerPartsList": { "parts": 48, "scope": "\"PATRIOT BOLT ACTION CENTERFIRE RIFLE (REMOVABLE MAGAZINE MODELS)\" list, p. 22, with exploded views on pp. 23–24. The separate 33-row FIXED MAGAZINE MODELS list (p. 25) is left out. No part numbers." }, "partsDiagrams": [], "materials": [], "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": [], "procedures": [ { "procedure": "stock-removal", "title": "Remove the Barrelled Action from the Stock", "configuration": false, "steps": [ { "n": 4, "instruction": "To reinstall, seat the action in the stock, start both screws by hand, then tighten the front screw first and the rear second to a consistent torque.", "warning": "Inconsistent action screw torque is one of the most common causes of a rifle that will not hold zero. Consult your stock maker’s specification rather than guessing." } ], "instruction": null }, { "procedure": "reassembly", "title": "Reassembly", "configuration": false, "steps": [ { "n": 1, "instruction": "Confirm the bolt is correctly assembled and the bolt head is properly oriented." }, { "n": 2, "instruction": "Align the bolt with the receiver raceway and slide it forward into the action." }, { "n": 3, "instruction": "Close the bolt handle and cycle the bolt several times to confirm smooth travel and correct cocking." }, { "n": 4, "instruction": "Confirm the bolt release retains the bolt when the action is opened fully." }, { "n": 5, "instruction": "Perform the function check." } ], "instruction": null } ] }, { "id": "torque", "title": "Torque", "coverage": "reported-only", "manufacturer": [], "reported": [ { "fastener": "Action screws (2)", "appliesTo": "Mossberg Patriot in a Boyds stock with the AICS-magazine kit", "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": "Secure the front of the trigger guard with the factory 1/4\"-28 x 1 1/2\" button-head action screw, then tighten both action screws before installing the magazine release lever ('you will not be able to access the rear action screw once the magazine release lever is installed').", "threadlocker": null, "source": { "title": "Assembly Instructions for ONLY Mossberg Patriot AICS magazine Boyds Stocks", "publisher": "Boyds Gunstocks", "reliability": "secondary", "url": "https://www.boydsgunstocks.com/docs/default-source/default-document-library/assembly-instructions-for-mossberg-patriot-aics-kit.pdf?sfvrsn=d1a676d_0", "page": "PDF p. 4", "pdfPage": 4, "pageUrl": "https://www.boydsgunstocks.com/docs/default-source/default-document-library/assembly-instructions-for-mossberg-patriot-aics-kit.pdf?sfvrsn=d1a676d_0#page=4", "quote": "-Tighten the 2 action screws to 45in/lbs, you will not be able to access the rear action screw once the magazine release lever is installed." } }, { "fastener": "Action screws (front and rear)", "appliesTo": "Mossberg Patriot SA/LA in an MDT Oryx chassis", "qualifier": "range", "value": 60, "valueMax": 65, "unit": "in-lb", "converted": { "value": { "N-m": 6.8, "in-lb": 60, "ft-lb": 5 }, "valueMax": { "N-m": 7.3, "in-lb": 65, "ft-lb": 5.4 } }, "sequence": "Push the action rearward against the recoil lug and torque the front action screw first, then the rear (manual p. 1: 'first torquing the front then the rear action screw'). Patriot LA: install the magazine latch after the rear action screw is secured.", "threadlocker": null, "source": { "title": "MDT Oryx Chassis System — User Manual (13694, Version 07.14.26), attached to MDT help-centre article 'ORYX Chassis Installation Guides'", "publisher": "MDT Sporting Goods Ltd. (Modular Driven Technologies, MDT)", "reliability": "secondary", "url": "https://support.mdttac.com/hc/article_attachments/51468856863892", "page": "PDF p. 2 (inlet-specific torque table)", "pdfPage": 2, "pageUrl": "https://support.mdttac.com/hc/article_attachments/51468856863892#page=2", "quote": "Mossberg Patriot SA/LA — 3/16” Hex Wrench — 60-65 inch-pounds" } }, { "fastener": "Action screws (barreled action to UMC)", "appliesTo": "Mossberg Patriot and Patriot-pattern actions in a Grayboe stock with Universal Mini Chassis (UMC)", "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": "For the Patriot the barreled action goes into the UMC first, then the trigger bow, then the UMC into the stock (UMC-to-stock screws 60 in-lb).", "threadlocker": null, "source": { "title": "Grayboe — UMC (Universal Mini Chassis) Installation Instructions (web page)", "publisher": "Grayboe", "reliability": "secondary", "url": "https://www.grayboe.com/pages/umc-installation-instructions", "page": "Section 'Mossberg Patriot', Step 2", "pdfPage": null, "pageUrl": null, "quote": "Set the barreled action into the mini chassis. Install the two supplied action screws (same length front and rear). Torque both screws to 45 inch-pounds." } } ], "notes": "The manufacturer's documents give no torque value. They say: \"Reinstall the action into the stock and tighten the front first, and then the rear, action screws.\" (Patriot Owner's Manual (doc 102353), PDF p. 6) \"PERIODICALLY CHECK THAT THE MUZZLE BRAKE (IF SO EQUIPPED) IS TIGHTENED FIRMLY ONTO THE BARREL.\" (Patriot Owner's Manual (doc 102353), PDF p. 18)" }, { "id": "function-check", "title": "Function check", "checks": [ "Verify the rifle is unloaded and the magazine is empty before each check.", "Cycle the bolt and confirm it cocks and closes fully into battery.", "With the action cocked, engage the safety and press the trigger. The firing pin must not release.", "Disengage the safety without touching the trigger. The firing pin must not release.", "Press the trigger and confirm the firing pin releases cleanly.", "Confirm the bolt release retains the bolt.", "Load dummy rounds and confirm they feed from the magazine and eject cleanly." ], "videos": [] } ], "troubleshooting": [], "sources": [ { "n": 1, "id": null, "title": "Mossberg Patriot Owner’s Manual", "publisher": "O.F. Mossberg & Sons, Inc.", "reliability": "primary", "url": null, "accessed": null }, { "n": 2, "id": "boyds-gunstocks-e5cc6e", "title": "Assembly Instructions for ONLY Mossberg Patriot AICS magazine Boyds Stocks", "publisher": "Boyds Gunstocks", "reliability": "secondary", "url": "https://www.boydsgunstocks.com/docs/default-source/default-document-library/assembly-instructions-for-mossberg-patriot-aics-kit.pdf?sfvrsn=d1a676d_0", "accessed": "2026-09-27" }, { "n": 3, "id": "o-f-mossberg-sons-inc-6fc38a", "title": "Patriot Owner's Manual (doc 102353)", "publisher": "O.F. Mossberg & Sons, Inc.", "reliability": "primary", "url": "https://resources.mossberg.com/hubfs/manuals/102353-Patriot-Owners-Manual.pdf", "accessed": "2026-09-27" }, { "n": 4, "id": "mdt-sporting-goods-ltd-modular-drive-9d8d3c", "title": "MDT Oryx Chassis System — User Manual (13694, Version 07.14.26), attached to MDT help-centre article 'ORYX Chassis Installation Guides'", "publisher": "MDT Sporting Goods Ltd. (Modular Driven Technologies, MDT)", "reliability": "secondary", "url": "https://support.mdttac.com/hc/article_attachments/51468856863892", "accessed": "2026-10-11" }, { "n": 5, "id": "grayboe-634c39", "title": "Grayboe — UMC (Universal Mini Chassis) Installation Instructions (web page)", "publisher": "Grayboe", "reliability": "secondary", "url": "https://www.grayboe.com/pages/umc-installation-instructions", "accessed": "2026-10-11" } ] }