{ "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": "walther-pdp", "name": "Walther PDP", "manufacturer": { "id": "walther", "name": "Carl Walther GmbH" }, "category": "pistol", "action": "striker-fired-short-recoil", "calibers": [ "9x19mm Parabellum" ], "alsoKnownAs": [ "Performance Duty Pistol", "PDP Compact", "PDP F-Series" ], "coversAlso": [ "PDP Full Size", "PDP Compact", "PDP Pro", "PDP F-Series" ], "page": "firearms/walther-pdp.html", "bundle": "api/v1/firearms/walther-pdp.json", "lastUpdated": "2026-10-29" }, "notices": [ "Carl Walther GmbH limits owner disassembly: Field strip, plus striker assembly, extractor and striker safety out of the slide, magazine disassembly, and grip, magazine-release and sight changes. No frame fire-control work.", "This work order is written for the Walther PDP. It is reported to cover PDP Full Size; PDP Compact; PDP Pro; PDP F-Series — 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, plus striker assembly, extractor and striker safety out of the slide, magazine disassembly, and grip, magazine-release and sight changes. No frame fire-control work.", "statement": "Walther says never to disassemble the handgun beyond the field-stripping process in the manual, never to manipulate internal components beyond what it specifically instructs, and that any other maintenance or service must be done by a qualified gunsmith using genuine Walther parts.", "source": { "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "page": "24", "pdfPage": 24, "pageUrl": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf#page=24", "quote": "NEVER DISASSEMBLE YOUR HANDGUN BEYOND THE FIELD STRIPPING PROCESS OUTLINED IN THIS MANUAL. NEVER MANIPULATE ANY INTERNAL COMPONENTS BEYOND WHAT YOU ARE SPECIFICALLY INSTRUCTED TO DO IN THIS MANUAL SINCE THIS MAY AFFECT THE RELIABILITY, FUNCTIONING AND SAFETY OF YOUR HANDGUN." } }, "recalls": [], "shopTier": { "tier": 1, "group": "pistol", "rating": "Pew-Takedown editorial rating (1 easy – 3 hardest), not the manufacturer's", "reason": "55 position numbers in Walther's C/FS list (assemblies and sub-parts both listed) for a Glock-class striker gun with a pinned sear housing. Walther's own slide strip needs a 2 mm drift and has one hold-two-things step (safety plunger down while the extractor snaps in); the recoil assembly only goes one way.", "confidence": "medium", "partCount": { "value": 55, "kind": "line-items", "covers": "Walther PDP C & FS spare parts list 283 99 89 Rev. e, standard-parts positions (pp. 2-3) incl. model-specific placeholders and magazine positions; assemblies and their sub-parts both listed.", "basis": "manufacturer-parts-list", "source": { "title": "Spare part list PDP C & FS 9mm x 19, 9mm x 21 (283 99 89 Rev. e)", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carlwalther.com/pdfs/Walther%20PDP%20C%20and%20FS%20283%2099%2089.pdf", "page": "p. 2-3", "pdfPage": null, "pageUrl": null, "quote": "36.1 279 09 80 Magazinhalterfixierung Magazine release keeper" } }, "painPoints": [ { "issue": "Refitting the extractor means holding the striker safety plunger down flush while the extractor is pressed home over its plunger, after a 2 mm drift has held the plunger down.", "during": "reassembly", "source": { "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Hold the safety plunger down flush with the surface of the slide." } }, { "issue": "The striker safety plunger spring falls out unless held in its hole with a drop of gun oil.", "during": "reassembly", "source": { "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Secure the spring of the striker safety plunger using a little gun lube (do not use any grease!) in the hole of the plunger to prevent it from falling out." } } ], "minutes": { "strip": 15, "rebuild": 25, "basis": "estimated", "note": "Slide (end cap, striker assembly, extractor and plunger, striker safety, sights, optic plate) and frame (sear housing pins, trigger, slide stop, takedown catch, mag release); rebuild longer for the extractor/safety plunger step.", "source": null }, "stripScope": [ { "assembly": "Slide", "removes": [ "slide end cap", "striker assembly", "extractor and extractor plunger assembly", "striker safety plunger and spring", "rear sight", "front sight and screw", "optic plate" ], "tools": [ "5/64\" (2 mm) drift punch", "sight pusher" ] }, { "assembly": "Frame", "removes": [ "pins 3x28, 3x24, 4x16", "sear housing assembly", "trigger assembly", "slide stop lever and spring", "takedown catch, pin, barrel lock and spring", "magazine release and keeper", "backstrap" ], "tools": [ "pin punches" ] } ], "hardware": { "pins": 6, "springs": 11, "detents": 2, "basis": "counted from Walther's PDP C & FS list (pins 22, 27, 31, 32.6, 32.7, 35; magazine spring included; extractor and safety plungers as detents)" }, "specialTools": [ { "tool": "5/64\" (2 mm) drift punch", "usedFor": "Slide end cap and extractor plunger (per Walther)" }, { "tool": "dovetail sight pusher (or brass drift and padded vise)", "usedFor": "Removing and refitting dovetailed sights for coating" } ], "fitOnRebuild": [ { "check": "Striker safety sits just below the feed rib", "why": "Walther's own check that the safety spring is in the bottom of its blind hole", "source": { "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "page": null, "pdfPage": null, "pageUrl": null, "quote": "When assembled correctly, the safety should be slightly below the feed rib next to it" } }, { "check": "Function check: trigger reset, sear/striker engagement, safeties", "why": "Standard post-reassembly check on any pistol whose fire-control parts were removed; a mis-seated spring shows up here, not on the bench", "source": null } ], "assessed": "2026-10-29" }, "videos": [ { "title": "Walther PDP Match (Polymer Frame) Disassembly, Cleaning & Reassembly", "url": "https://www.youtube.com/watch?v=Ky3Uhv3UMUI", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip", "cleaning", "reassembly" ], "appliesTo": "Walther PDP Match (polymer frame) — a PDP variant; standard PDP / Compact / F-Series not named", "published": "2023-12-01", "note": null, "channel": { "id": "UCRmTR5AfERPDQuv2pm8Yg2g", "name": "WaltherFirearms", "url": "https://www.youtube.com/@Waltherarms", "owner": "Walther Arms, Inc. (US subsidiary of Carl Walther GmbH)" }, "accessed": "2026-10-15" } ], "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": "Press the magazine release and remove the magazine.", "partsFreed": [ "Magazine" ] }, { "n": 3, "instruction": "Retract the slide fully to eject any chambered round and lock it open." }, { "n": 4, "instruction": "Visually inspect the chamber and magazine well, then physically feel the chamber to confirm it is empty.", "warning": "Look and feel. Both, every time." }, { "n": 5, "instruction": "Remove all live ammunition from the work area." } ], "videos": [] }, { "id": "disassemble", "title": "Disassemble", "videos": [ { "title": "Walther PDP Match (Polymer Frame) Disassembly, Cleaning & Reassembly", "url": "https://www.youtube.com/watch?v=Ky3Uhv3UMUI", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip", "cleaning", "reassembly" ], "appliesTo": "Walther PDP Match (polymer frame) — a PDP variant; standard PDP / Compact / F-Series not named", "published": "2023-12-01", "note": null, "channel": { "id": "UCRmTR5AfERPDQuv2pm8Yg2g", "name": "WaltherFirearms", "url": "https://www.youtube.com/@Waltherarms", "owner": "Walther Arms, Inc. (US subsidiary of Carl Walther GmbH)" }, "accessed": "2026-10-15" } ], "procedures": [ { "procedure": "field-strip", "title": "Field Strip", "level": "field-strip", "configuration": false, "steps": [ { "n": 1, "instruction": "Complete the Clear and Make Safe procedure and put on safety glasses. Walther asks for them every time." }, { "n": 2, "instruction": "Point the pistol in a safe direction with your finger off the trigger, depress the magazine release and remove the magazine." }, { "n": 3, "instruction": "Pull the slide fully to the rear, press up on the slide stop lever while letting the slide move slightly forward, locking it open." }, { "n": 4, "instruction": "Look into the chamber AND down through the magazine well. Verify no ammunition remains.", "warning": "This is the inspection the next step depends on. Do both — chamber and magazine well." }, { "n": 5, "instruction": "Close the slide: pull it slightly to the rear and slowly release it forward." }, { "n": 6, "instruction": "Point the pistol in a safe direction and squeeze the trigger fully to the rear.", "warning": "This pistol requires a trigger press to field strip. Walther states it in capitals: if you have failed to properly unload and a live round is left in the chamber, the pistol WILL discharge. Visually inspect the chamber and the magazine well before your finger goes near the trigger." }, { "n": 7, "instruction": "Grip the takedown catch from above on both sides and press downwards.", "tip": "Both sides, from above, pressed down — not a rotating lever." }, { "n": 8, "instruction": "Move the slide forward and remove it from the frame.", "partsFreed": [ "Slide" ] }, { "n": 9, "instruction": "Remove the recoil spring assembly, then the thread protector if the barrel is threaded (counter-clockwise), then the barrel.", "partsFreed": [ "Recoil spring assembly", "Barrel" ] }, { "n": 10, "instruction": "Stop here. Walther instructs never to disassemble beyond this, and never to manipulate internal components." } ] } ] }, { "id": "refinish", "title": "Refinish", "components": [ { "name": "Slide", "procedure": "field-strip", "level": "field-strip", "step": 8 }, { "name": "Recoil spring assembly", "procedure": "field-strip", "level": "field-strip", "step": 9 }, { "name": "Barrel", "procedure": "field-strip", "level": "field-strip", "step": 9 } ], "manufacturerPartsList": null, "partsDiagrams": [], "materials": [ { "component": "Frame", "material": "Polymer", "finish": "Molded Polymer", "appliesTo": "PDP Standard Full Size 4.5 in", "note": null, "source": { "title": "Walther PDP Standard Full Size 4.5\" — Specifications", "publisher": "Walther Arms, Inc. (US importer for Carl Walther GmbH)", "reliability": "primary", "url": "https://waltherarms.com/defense/pdp/pdp-standard-full-size-4-5-in", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Frame Material Polymer … Frame Finish Molded Polymer" } }, { "component": "Slide", "material": null, "finish": "Black", "appliesTo": "PDP Standard Full Size 4.5 in", "note": null, "source": { "title": "Walther PDP Standard Full Size 4.5\" — Specifications", "publisher": "Walther Arms, Inc. (US importer for Carl Walther GmbH)", "reliability": "primary", "url": "https://waltherarms.com/defense/pdp/pdp-standard-full-size-4-5-in", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Slide Color Black" } }, { "component": "Trigger", "material": "Polymer", "finish": null, "appliesTo": "PDP Standard Full Size 4.5 in", "note": null, "source": { "title": "Walther PDP Standard Full Size 4.5\" — Specifications", "publisher": "Walther Arms, Inc. (US importer for Carl Walther GmbH)", "reliability": "primary", "url": "https://waltherarms.com/defense/pdp/pdp-standard-full-size-4-5-in", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Trigger Shoe Material Polymer" } } ], "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": "Walther PDP Match (Polymer Frame) Disassembly, Cleaning & Reassembly", "url": "https://www.youtube.com/watch?v=Ky3Uhv3UMUI", "platform": "youtube", "embedUrl": null, "shows": [ "field-strip", "cleaning", "reassembly" ], "appliesTo": "Walther PDP Match (polymer frame) — a PDP variant; standard PDP / Compact / F-Series not named", "published": "2023-12-01", "note": null, "channel": { "id": "UCRmTR5AfERPDQuv2pm8Yg2g", "name": "WaltherFirearms", "url": "https://www.youtube.com/@Waltherarms", "owner": "Walther Arms, Inc. (US subsidiary of Carl Walther GmbH)" }, "accessed": "2026-10-15" } ], "procedures": [ { "procedure": "reassembly", "title": "Reassembly", "configuration": false, "steps": [ { "n": 1, "instruction": "Hold the slide upside down and place the barrel inside it with the locking lugs oriented as the manual's figure shows." }, { "n": 2, "instruction": "Refit the thread protector if the barrel is threaded." }, { "n": 3, "instruction": "Place the smaller end of the recoil rod into the spring mounting at the front of the slide, then insert the large polymer end of the recoil spring into the lower barrel recess while compressing it.", "tip": "Small end to the slide's front mounting, large polymer end into the barrel recess. They are not interchangeable." }, { "n": 4, "instruction": "Fit the slide onto the frame rails and run it rearward." }, { "n": 5, "instruction": "Return the takedown catch, cycle the slide, and perform the function check." } ], "instruction": null } ] }, { "id": "torque", "title": "Torque", "coverage": "sourced", "manufacturer": [ { "fastener": "Front sight screw", "appliesTo": null, "qualifier": "exact", "value": 8.8, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 0.99, "in-lb": 8.8, "ft-lb": 0.73 }, "valueMax": null }, "sequence": "Make sure the screw and the thread inside the front sight are free of oil or grease before applying the adhesive.", "threadlocker": "Industrial thread adhesive, for example Loctite 648", "source": { "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "page": "37", "pdfPage": 37, "pageUrl": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf#page=37", "quote": "To tighten the front sight screw, apply a torque of 8.8 inch pounds (1 Nm)." } }, { "fastener": "Optic mount base screws (2)", "appliesTo": "Optics-ready slides", "qualifier": "approximate", "value": 18, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 2, "in-lb": 18, "ft-lb": 1.5 }, "valueMax": null }, "sequence": "Seat the base with its markings facing down and keep pulling it toward its front stop, toward the muzzle, while tightening. Then fit the sight per its maker's instructions.", "threadlocker": null, "source": { "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "page": "39", "pdfPage": 39, "pageUrl": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf#page=39", "quote": "Tighten both screws (apply a torque of approximately 18 inch pounds (2 Nm))." } } ], "reported": [ { "fastener": "Optic plate to slide screws", "appliesTo": "Walther PDP v2 slide with Forward Controls Design OPF-PDP v2, ACRO plate", "qualifier": "exact", "value": 13, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.5, "in-lb": 13, "ft-lb": 1.1 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "OPF-PDP v2, ACRO (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-ACRO_p_438.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Torque value for plate to slide: 13 in·lb." } }, { "fastener": "Aimpoint ACRO P1/P2 mounting screw", "appliesTo": "Walther PDP v2 with FCD OPF-PDP v2, ACRO plate, Aimpoint ACRO P1/P2", "qualifier": "exact", "value": 26, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 2.9, "in-lb": 26, "ft-lb": 2.2 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "OPF-PDP v2, ACRO (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-ACRO_p_438.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Torque value for ACRO P1/P2 mounting screw: 26 in·lb. For Steiner MPS, 24 in·lb." } }, { "fastener": "Steiner MPS mounting screw", "appliesTo": "Walther PDP v2 with FCD OPF-PDP v2, ACRO plate, Steiner MPS", "qualifier": "exact", "value": 24, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 2.7, "in-lb": 24, "ft-lb": 2 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "OPF-PDP v2, ACRO (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-ACRO_p_438.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Torque value for ACRO P1/P2 mounting screw: 26 in·lb. For Steiner MPS, 24 in·lb." } }, { "fastener": "Optic plate to slide screws", "appliesTo": "Walther PDP v2 slide with Forward Controls Design OPF-PDP v2, DPP plate", "qualifier": "exact", "value": 13, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 1.5, "in-lb": 13, "ft-lb": 1.1 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "OPF-PDP v2, DPP (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-DPP_p_604.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Torque value for plate to slide: 13 in·lb." } }, { "fastener": "Leupold DeltaPoint Pro sight to plate mounting screws", "appliesTo": "Walther PDP v2 with FCD OPF-PDP v2, DPP plate, Leupold DeltaPoint Pro", "qualifier": "exact", "value": 25, "valueMax": null, "unit": "in-lb", "converted": { "value": { "N-m": 2.8, "in-lb": 25, "ft-lb": 2.1 }, "valueMax": null }, "sequence": null, "threadlocker": null, "source": { "title": "OPF-PDP v2, DPP (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-DPP_p_604.html", "page": null, "pdfPage": null, "pageUrl": null, "quote": "Torque value for DPP sight to plate mounting screw: 25 in·lb." } }, { "fastener": "XS optic plate to slide screws", "appliesTo": "Walther PDP with the XS Walther PDP Optic Plate (RMR or ACRO footprint) (fitment per XS product page https://xssights.com/products/walther-pdp-optic-plate-fits-rmr.html)", "qualifier": "range", "value": 6, "valueMax": 8, "unit": "in-lb", "converted": { "value": { "N-m": 0.68, "in-lb": 6, "ft-lb": 0.5 }, "valueMax": { "N-m": 0.9, "in-lb": 8, "ft-lb": 0.67 } }, "sequence": "Degrease, apply the supplied blue threadlocker, start both screws before torquing, then tighten one at a time. XS recommends 12-24 h Loctite cure before shooting and witness-marking the screws.", "threadlocker": "Supplied blue threadlocker", "source": { "title": "XS Sights — Installation Instructions, XS Optic Plates (PDF linked from the XS product page)", "publisher": "XS Sights", "reliability": "secondary", "url": "https://xssights.com/content/Install%20Instructions/XS%20Optic%20Plate%20installation%20instructions.pdf", "page": "PDF p. 1, step 10", "pdfPage": 1, "pageUrl": "https://xssights.com/content/Install%20Instructions/XS%20Optic%20Plate%20installation%20instructions.pdf#page=1", "quote": "Tighten screws one at a time to a final torque spec of 6-8 inch pounds." } }, { "fastener": "Optic to XS optic plate screws", "appliesTo": "Walther PDP with the XS Walther PDP Optic Plate (RMR or ACRO footprint) (fitment per XS product page https://xssights.com/products/walther-pdp-optic-plate-fits-rmr.html)", "qualifier": "range", "value": 6, "valueMax": 8, "unit": "in-lb", "converted": { "value": { "N-m": 0.68, "in-lb": 6, "ft-lb": 0.5 }, "valueMax": { "N-m": 0.9, "in-lb": 8, "ft-lb": 0.67 } }, "sequence": "Degrease, apply the supplied blue threadlocker, start both screws before torquing, then tighten one at a time. XS recommends 12-24 h Loctite cure before shooting and witness-marking the screws.", "threadlocker": "Supplied blue threadlocker", "source": { "title": "XS Sights — Installation Instructions, XS Optic Plates (PDF linked from the XS product page)", "publisher": "XS Sights", "reliability": "secondary", "url": "https://xssights.com/content/Install%20Instructions/XS%20Optic%20Plate%20installation%20instructions.pdf", "page": "PDF p. 1, step 13", "pdfPage": 1, "pageUrl": "https://xssights.com/content/Install%20Instructions/XS%20Optic%20Plate%20installation%20instructions.pdf#page=1", "quote": "Tighten optic to plate screws with a final torque spec of 6-8 inch pounds." } } ], "notes": null }, { "id": "function-check", "title": "Function check", "checks": [ "Verify the pistol is unloaded with no magazine inserted before each check.", "Rack the slide and press the trigger. The striker should release cleanly.", "Hold the trigger to the rear, rack the slide, then release slowly and confirm the reset.", "Press the trigger again to confirm the striker releases.", "Confirm the slide locks open on an empty magazine and the magazine drops free." ], "videos": [] } ], "troubleshooting": [ { "symptom": "The takedown catch will not move.", "cause": "It is being rotated. The PDP catch is gripped from above on both sides and pressed down.", "fix": "Squeeze the catch from above on both sides and press downwards, after releasing the striker with the trigger." }, { "symptom": "The recoil spring assembly will not seat in the slide.", "cause": "It is in backwards. The two ends are not interchangeable.", "fix": "The small rod end goes into the spring mounting at the front of the slide; the large polymer end goes into the lower barrel recess." } ], "sources": [ { "n": 1, "id": "walther-pdp-manual", "title": "Walther PDP Pistols Safety & Instruction Manual", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carl-walther.de/uploads/media/manuals/283%2099%2071%20a%20PDP-Pistols%20USA%20Web.pdf", "accessed": "2026-09-15" }, { "n": 2, "id": "forward-controls-design-ef8843", "title": "OPF-PDP v2, ACRO (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-ACRO_p_438.html", "accessed": "2026-09-27" }, { "n": 3, "id": "forward-controls-design-74e2d6", "title": "OPF-PDP v2, DPP (product page)", "publisher": "Forward Controls Design", "reliability": "secondary", "url": "https://www.forwardcontrolsdesign.com/OPF-PDP-v2-DPP_p_604.html", "accessed": "2026-09-27" }, { "n": 4, "id": "waltherarms-specs-500d0e", "title": "Walther PDP Standard Full Size 4.5\" — Specifications", "publisher": "Walther Arms, Inc. (US importer for Carl Walther GmbH)", "reliability": "primary", "url": "https://waltherarms.com/defense/pdp/pdp-standard-full-size-4-5-in", "accessed": "2026-10-03" }, { "n": 5, "id": "xs-sights-b17951", "title": "XS Sights — Installation Instructions, XS Optic Plates (PDF linked from the XS product page)", "publisher": "XS Sights", "reliability": "secondary", "url": "https://xssights.com/content/Install%20Instructions/XS%20Optic%20Plate%20installation%20instructions.pdf", "accessed": "2026-10-11" }, { "n": 6, "id": "tier-f9154cca", "title": "Spare part list PDP C & FS 9mm x 19, 9mm x 21 (283 99 89 Rev. e)", "publisher": "Carl Walther GmbH", "reliability": "primary", "url": "https://carlwalther.com/pdfs/Walther%20PDP%20C%20and%20FS%20283%2099%2089.pdf", "accessed": "2026-10-29" } ] }