{ "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": "beretta-1301", "name": "Beretta 1301", "manufacturer": { "id": "beretta", "name": "Beretta" }, "category": "shotgun", "action": "gas-operated-short-stroke", "calibers": [ "12 gauge" ], "alsoKnownAs": [ "1301 Tactical", "1301 Comp" ], "coversAlso": [ "Beretta 1301 Tactical", "Beretta 1301 Comp", "Beretta A300 Ultima Patrol (related gas system)" ], "page": "firearms/beretta-1301.html", "bundle": "api/v1/firearms/beretta-1301.json", "lastUpdated": "2026-10-29" }, "notices": [ "Beretta limits owner disassembly: Field strip and cleaning breakdown: fore-end, barrel, breech bolt assembly (bolt, operating rods, recoil spring) and trigger plate removal; the gas valve is not to be stripped.", "This work order is written for the Beretta 1301. It is reported to cover Beretta 1301 Tactical; Beretta 1301 Comp; Beretta A300 Ultima Patrol (related gas system) — 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": "limited", "limit": "Field strip and cleaning breakdown: fore-end, barrel, breech bolt assembly (bolt, operating rods, recoil spring) and trigger plate removal; the gas valve is not to be stripped.", "statement": "Beretta says never to strip or disassemble the gas valve assembly (contact a competent gunsmith if necessary), and that any alterations or adjustments to the operating mechanism should be done by Beretta or its authorized distributor.", "source": { "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "page": "34", "pdfPage": 36, "pageUrl": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf#page=36", "quote": "NEVER STRIP the spring of the valve or the valve retaining nut (fig. 32). The valve device is self-cleaning and requires no maintenance. If necessary, contact a competent gunsmith." } }, "recalls": [], "shopTier": { "tier": 2, "group": "shotgun", "rating": "Pew-Takedown editorial rating (1 easy – 3 hardest), not the manufacturer's", "reason": "Gas gun with the recoil spring on the magazine tube (no buttstock tube to fight), a trigger plate that drops out on one pin, and a do-not-touch gas valve. The traps are moderate: bolt, rods, spring and piston stop stacked on the tube together, a trigger plate that needs the hammer cocked and the release held, orientation of gas parts, and the cocking-handle groove. Low Tier 2.", "confidence": "medium", "partCount": null, "painPoints": [ { "issue": "The trigger plate goes back only with the hammer cocked and safety on, the release button held down while the plate is rotated in, and the retaining pin inserted only when the holes are centred.", "during": "reassembly", "source": { "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Hold the release button down firmly and turn the trigger plate until it is inserted into the receiver (fig. 41)." } }, { "issue": "Breech bolt, operating rods with sleeve, recoil spring and piston stop are stacked on the magazine tube and pushed in together, which takes some juggling on a flat surface.", "during": "reassembly", "source": { "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "fit the breech bolt assembly, operating rods with sleeve, recoil spring and piston stop on the magazine tube (fig. 42)." } }, { "issue": "The self-cleaning gas valve assembly must not be stripped; Beretta sends it to a gunsmith.", "during": "disassembly", "source": { "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "NEVER DISASSEMBLE the valve assembly (fig. 32). If necessary, contact a competent gunsmith." } } ], "minutes": { "strip": 45, "rebuild": 60, "basis": "estimated", "note": "Strip of bolt (cocking handle, head, firing pin), operating rods and recoil spring on the magazine tube, piston and seal, trigger plate and stock bolt; gas valve left alone.", "source": null }, "stripScope": [ { "assembly": "Barrel / gas", "removes": [ "magazine cap", "fore-end", "barrel", "piston and elastic piston seal (direction noted)", "piston stop, recoil spring, operating rods with sleeve" ] }, { "assembly": "Receiver", "removes": [ "trigger plate retaining pin and trigger plate", "breech bolt assembly", "bolt release / carrier latch" ] }, { "assembly": "Bolt", "removes": [ "cocking handle", "bolt head and cam pin", "firing pin retaining pin, firing pin and spring", "extractor" ] }, { "assembly": "Trigger plate", "removes": [ "hammer, sear, trigger and springs (only if coating the plate)" ] }, { "assembly": "Stock", "removes": [ "recoil pad", "stock bolt, spacers and drop/cast shims (Kick-Off unit left sealed)" ], "tools": [ "long stock-bolt socket" ] } ], "hardware": null, "specialTools": [ { "tool": "Long stock-bolt socket on extension", "usedFor": "Stock bolt" }, { "tool": "Punch set", "usedFor": "Trigger plate and bolt pins" } ], "fitOnRebuild": [ { "check": "Gas valve not disturbed", "why": "Beretta forbids disassembling the self-cleaning valve; leave it assembled and mask it.", "source": { "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "NEVER DISASSEMBLE the valve assembly (fig. 32). If necessary, contact a competent gunsmith." } }, { "check": "Stock drop/cast spacers returned as fitted", "why": "The spacer set determines the customer's fit; mark and refit them as removed.", "source": null }, { "check": "Function check: safety, trigger/sear release, disconnector and feeding with dummy rounds", "why": "Standard after any detail strip; a mis-assembled sear or disconnector can double or fail to fire.", "source": null } ], "assessed": "2026-10-29" }, "videos": [], "configurations": [], "tools": [], "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": "Engage the crossbolt safety." }, { "n": 3, "instruction": "Pull the bolt handle rearward to eject any chambered shell and lock the bolt open.", "partsFreed": [ "Chambered shell, if present" ] }, { "n": 4, "instruction": "Cycle the action repeatedly, catching each shell as it ejects, until no more shells feed from the magazine tube." }, { "n": 5, "instruction": "With the action open, inspect the chamber and look up the magazine tube with a light.", "warning": "The chamber AND the tube. A shell hung up in the tube is easy to miss." }, { "n": 6, "instruction": "Physically confirm the chamber is empty and 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, inspecting through the ejection port, the loading gate and the chamber. Check that the hammer is decocked.", "tip": "Work over a table. Beretta advises it so components are caught if they drop." }, { "n": 2, "instruction": "Check that the carrier stop pin is pressed all the way down. If it is not, push it down.", "tip": "This comes first, before anything is unscrewed. It is the step the generic shotgun procedure leaves out." }, { "n": 3, "instruction": "Pull the breech bolt all the way back so that it stays open." }, { "n": 4, "instruction": "Unscrew the front cap of the fore-end anticlockwise.", "partsFreed": [ "Fore-end cap" ] }, { "n": 5, "instruction": "Holding the shotgun by the barrel, pull the fore-end straight out toward the muzzle.", "partsFreed": [ "Fore-end" ] }, { "n": 6, "instruction": "Pull the barrel out of the stock and receiver assembly while holding the piston inside the gas cylinder.", "tip": "Hold the piston as the barrel comes off, or it comes with it and lands on the floor.", "partsFreed": [ "Barrel" ] } ] }, { "procedure": "bolt-stripping", "title": "Breech bolt stripping", "level": "detail-strip", "configuration": false, "steps": [ { "n": 1, "instruction": "The breech bolt assembly only needs to come apart in order to clean its components. Beretta says so explicitly." }, { "n": 2, "instruction": "Keeping the index or middle finger of your left hand on the cocking handle, press the release button and let the breech bolt move forward slowly until it stops.", "warning": "Control it with a finger on the cocking handle. Letting it run forward is how parts get damaged." }, { "n": 3, "instruction": "Press the head of the breech bolt until the groove on its neck lines up with the edge of the bolt body.", "tip": "The cocking handle will not come out until that groove is aligned. If it feels immovable, the head is not pressed far enough." }, { "n": 4, "instruction": "Keeping the head depressed in that position, pull the cocking handle out of the breech bolt — forcefully.", "partsFreed": [ "Cocking handle" ] }, { "n": 5, "instruction": "Working over a flat surface with the ejection port pointed upwards, pull forward on the breech bolt assembly, the operating rods with sleeve, the recoil spring and the spring holder together, to force the breech bolt out of the receiver.", "tip": "Ejection port up, and all of it forward as one. This is not a rearward extraction.", "partsFreed": [ "Breech bolt assembly", "Operating rods with sleeve", "Recoil spring", "Spring holder" ] }, { "n": 6, "instruction": "If you also need the trigger plate out: engage the safety with the hammer cocked, press the carrier stop pin if it is not already pressed, drive out the trigger guard retaining pin with a pin punch or awl, and remove the trigger plate by pressing on the trigger guard toward the barrel first.", "tip": "Beretta notes the trigger plate only needs disassembly to clean the trigger mechanism.", "partsFreed": [ "Trigger plate" ] } ] } ] }, { "id": "refinish", "title": "Refinish", "components": [ { "name": "Fore-end cap", "procedure": "field-strip", "level": "field-strip", "step": 4 }, { "name": "Fore-end", "procedure": "field-strip", "level": "field-strip", "step": 5 }, { "name": "Barrel", "procedure": "field-strip", "level": "field-strip", "step": 6 }, { "name": "Cocking handle", "procedure": "bolt-stripping", "level": "detail-strip", "step": 4 }, { "name": "Breech bolt assembly", "procedure": "bolt-stripping", "level": "detail-strip", "step": 5 }, { "name": "Operating rods with sleeve", "procedure": "bolt-stripping", "level": "detail-strip", "step": 5 }, { "name": "Recoil spring", "procedure": "bolt-stripping", "level": "detail-strip", "step": 5 }, { "name": "Spring holder", "procedure": "bolt-stripping", "level": "detail-strip", "step": 5 }, { "name": "Trigger plate", "procedure": "bolt-stripping", "level": "detail-strip", "step": 6 } ], "manufacturerPartsList": null, "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": "bolt-stripping", "title": "Breech bolt stripping", "configuration": false, "steps": null, "instruction": "Reverse the steps of \"Breech bolt stripping\"." }, { "procedure": "reassembly", "title": "Reassembly", "configuration": false, "steps": [ { "n": 1, "instruction": "Install the trigger group into the receiver and insert its pin fully." }, { "n": 2, "instruction": "Slide the bolt assembly into the receiver, engaging the link with the recoil spring plunger." }, { "n": 3, "instruction": "Install the bolt handle into the bolt." }, { "n": 4, "instruction": "Reinstall the gas piston and seals in their correct orientation.", "warning": "Reversed components will not seal and the gun will not cycle correctly." }, { "n": 5, "instruction": "Set the barrel into the receiver with its extension seated fully and its ring over the magazine tube." }, { "n": 6, "instruction": "Install the forend and thread the magazine cap on, hand-tightening firmly.", "warning": "A loose magazine cap causes malfunctions and lets the barrel move. Check it before every use." }, { "n": 7, "instruction": "Cycle the action several times and perform the function check." } ], "instruction": null } ] }, { "id": "torque", "title": "Torque", "coverage": "sourced", "manufacturer": [ { "fastener": "Stock retaining nut (13 mm)", "appliesTo": "When changing stock drop and cast", "qualifier": "range", "value": 9, "valueMax": 11, "unit": "N-m", "converted": { "value": { "N-m": 9, "in-lb": 80, "ft-lb": 6.6 }, "valueMax": { "N-m": 11, "in-lb": 97, "ft-lb": 8.1 } }, "sequence": "Front and rear spacers must carry the same drop and cast values. Beretta gives this figure in the tools list for the drop-and-cast procedure, beside the 13 mm tube spanner that removes the stock retaining nut.", "threadlocker": null, "source": { "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "page": "50", "pdfPage": 52, "pageUrl": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf#page=52", "quote": "Torque wrench with a 13-mm pipe extension recommended. Tightness torque 9-11 N/m" } } ], "reported": [ { "fastener": "Grip adaptor collar nut (on M9 male-to-male fastener in rear of receiver), 1/4\" hex", "appliesTo": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) on a Beretta 1301 / 1301 Mod 2 (not A300 Ultima Patrol)", "qualifier": "exact", "value": 40, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 4.5, "in-lb": 40, "ft-lb": 3.3 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) — Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf", "page": "PDF p. 1 of 2", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf#page=1", "quote": "Install grip adaptor into the back of the receiver. Use a ¼ inch allen wrench to fasten it using the collar nut and torque to 40inch lbs." } }, { "fastener": "Grip-to-adaptor 8-32 flat head screws (6)", "appliesTo": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) on a Beretta 1301 / 1301 Mod 2", "qualifier": "exact", "value": 10, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.1, "in-lb": 10, "ft-lb": 0.83 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) — Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf", "page": "PDF p. 1 of 2", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf#page=1", "quote": "Slide the grip onto the adaptor and attach with the six 8-32 flat heads. Torque these to 10inch lbs." } }, { "fastener": "Stock-to-grip 10-24 flat head screws (4)", "appliesTo": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) on a Beretta 1301 / 1301 Mod 2", "qualifier": "exact", "value": 10, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.1, "in-lb": 10, "ft-lb": 0.83 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) — Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf", "page": "PDF p. 1 of 2", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf#page=1", "quote": "Slide the stock into the grip and fasten the four 10-24 flat heads. Torque to 10inch lbs." } }, { "fastener": "Handguard front ring screws", "appliesTo": "Midwest Industries Beretta 1301 M-LOK Handguard (MI-1301-HG) on a Beretta 1301 Mod 1 / Mod 2 (not 1301 Comp or A300 Ultima Patrol)", "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": "Torque evenly.", "threadlocker": "Vibra-tite, after degreasing", "source": { "title": "Midwest Industries Beretta 1301 Handguard (MI-1301-HG) — Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Handguard_MI-1301-HG-Instructions.pdf", "page": "PDF p. 1 (single page)", "pdfPage": 1, "pageUrl": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Handguard_MI-1301-HG-Instructions.pdf#page=1", "quote": "Degrease the provided screws. After drying, apply a drop of Vibra-tite to each front ring screw, install and torque evenly to 30inch lbs." } }, { "fastener": "Reflex sight mount to receiver (two metric flathead screws, factory rail holes)", "appliesTo": "Mesa Tactical RMR-footprint reflex sight mount on a Beretta 1301 Tactical (not 1301 Comp)", "qualifier": "approximate", "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": "Purple or blue thread locker recommended", "source": { "title": "Mesa Tactical Reflex Sight Mounts Manual (46020 rev e)", "publisher": "Mesa Tactical", "reliability": "secondary", "url": "https://mesatactical.com/content/manuals/46020_Reflex_Sight_Mounts_Manual_rev_e.pdf", "page": "PDF p. 4 of 8", "pdfPage": 4, "pageUrl": "https://mesatactical.com/content/manuals/46020_Reflex_Sight_Mounts_Manual_rev_e.pdf#page=4", "quote": "For Benelli M2 Tactical and Benelli M4 use the three screws and washers. For Beretta 1301 Tactical use the two metric flathead screws. Tighten to about 15 inch-lbs." } }, { "fastener": "SureShell carrier/reflex mount to receiver (two M4 x 10 mm Torx flathead screws)", "appliesTo": "Mesa Tactical SureShell shotshell carrier with reflex mount on a Beretta 1301 Tactical", "qualifier": "approximate", "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": "Purple or blue thread lock recommended", "source": { "title": "Mesa Tactical SureShell Carrier and Reflex Sight Mount Manual (46009 rev f)", "publisher": "Mesa Tactical", "reliability": "secondary", "url": "https://mesatactical.com/content/manuals/46009_Sureshell_Carrier_and_Reflex_Sight_Mount_Manual_rev_f.pdf", "page": "PDF p. 7 of 8", "pdfPage": 7, "pageUrl": "https://mesatactical.com/content/manuals/46009_Sureshell_Carrier_and_Reflex_Sight_Mount_Manual_rev_f.pdf#page=7", "quote": "For Beretta 1301 Tactical use the two metric flathead screws. Tighten to about 15 inch-lbs." } }, { "fastener": "SureShell carrier/ACRO mount to receiver (two screws, T20 Torx)", "appliesTo": "Mesa Tactical SureShell carrier with ACRO sight mount on a Beretta 1301 Tactical (also A300; not 1301 Competition)", "qualifier": "approximate", "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": "Purple or blue thread lock recommended", "source": { "title": "Mesa Tactical SureShell Carrier and ACRO Sight Mount Manual (46028)", "publisher": "Mesa Tactical", "reliability": "secondary", "url": "https://mesatactical.com/content/manuals/46028_SureShell_Carrier_and_ACRO_Sight_Mount_Manual.pdf", "page": "PDF p. 7 of 9", "pdfPage": 7, "pageUrl": "https://mesatactical.com/content/manuals/46028_SureShell_Carrier_and_ACRO_Sight_Mount_Manual.pdf#page=7", "quote": "Use the two screws and T20 Torx wrench included in your zip bag hardware kit. Tighten screws to about 15 inch-lbs." } } ], "notes": "From Beretta's semiautomatic shotgun user manual (A300, A350, A400, 1301), which prints the unit as \"N/m\"; in a torque specification that can only mean newton-metres." }, { "id": "function-check", "title": "Function check", "checks": [ "Verify the shotgun is unloaded — chamber and magazine tube — before each step.", "Cycle the action by hand and confirm the bolt locks fully into battery.", "With the hammer cocked, engage the safety and press the trigger. The hammer must not fall.", "Disengage the safety and press the trigger. The hammer should fall.", "Confirm the bolt locks open when retracted and releases with the carrier release.", "Load two dummy shells into the magazine and confirm they feed and eject one at a time.", "Confirm the magazine cap is tight." ], "videos": [] } ], "troubleshooting": [ { "symptom": "The cocking handle will not pull out of the breech bolt.", "cause": "The bolt head is not pressed far enough for the groove on its neck to line up with the edge of the bolt body.", "fix": "Press the bolt head in until that groove aligns, hold it there, and pull the cocking handle straight out — once it is aligned it comes free with a firm tug.", "damageRisk": "If it feels immovable, it is not aligned. Levering at it bends the handle." }, { "symptom": "The barrel will not come off, or the piston fell out with it.", "cause": "The carrier stop pin was not pressed down first, or the piston was not held inside the gas cylinder.", "fix": "Press the carrier stop pin all the way down, pull the breech bolt back so it stays open, then hold the piston in the gas cylinder as you draw the barrel off." } ], "sources": [ { "n": 1, "id": "beretta-semiauto-manual", "title": "Beretta Semiautomatic Shotgun User Manual (A400, A350, 1301)", "publisher": "Beretta", "reliability": "primary", "url": "https://dam.beretta.com/content/dam/beretta-usa/user-manuals/semiauto_Manual.pdf", "accessed": "2026-09-15" }, { "n": 2, "id": "midwest-industries-inc-596b7a", "title": "Midwest Industries Beretta 1301 Stock (MI-SG-1301) — Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Stock-MI-SG-1301-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 3, "id": "midwest-industries-inc-b6a8ec", "title": "Midwest Industries Beretta 1301 Handguard (MI-1301-HG) — Instructions", "publisher": "Midwest Industries, Inc.", "reliability": "secondary", "url": "https://midwestindustriesinc.com/content/installation-instructions/Beretta-1301-Handguard_MI-1301-HG-Instructions.pdf", "accessed": "2026-10-11" }, { "n": 4, "id": "mesa-tactical-2c0458", "title": "Mesa Tactical Reflex Sight Mounts Manual (46020 rev e)", "publisher": "Mesa Tactical", "reliability": "secondary", "url": "https://mesatactical.com/content/manuals/46020_Reflex_Sight_Mounts_Manual_rev_e.pdf", "accessed": "2026-10-11" }, { "n": 5, "id": "mesa-tactical-bd5324", "title": "Mesa Tactical SureShell Carrier and Reflex Sight Mount Manual (46009 rev f)", "publisher": "Mesa Tactical", "reliability": "secondary", "url": "https://mesatactical.com/content/manuals/46009_Sureshell_Carrier_and_Reflex_Sight_Mount_Manual_rev_f.pdf", "accessed": "2026-10-11" }, { "n": 6, "id": "mesa-tactical-12d2f0", "title": "Mesa Tactical SureShell Carrier and ACRO Sight Mount Manual (46028)", "publisher": "Mesa Tactical", "reliability": "secondary", "url": "https://mesatactical.com/content/manuals/46028_SureShell_Carrier_and_ACRO_Sight_Mount_Manual.pdf", "accessed": "2026-10-11" } ] }