Disassemble guns into parts. Use those parts to repair and upgrade firearms of the same type. Tinker, tune, and turn junk into your new favorite zombie popper.
Yes, you can finally stop hoarding 27 half-broken pistols “just in case”.
🔍 Overview
Disassemble any supported firearm to salvage parts.
Repair & upgrade weapons of the same type using those parts.
Maintenance and Aiming skills reduce costs, speed up actions, and boost part yield.
Maintenance XP bonus on every action performed with the mod.
Attachments, magazine, and loaded rounds are safely moved to your inventory during disassembly—no more “oops, where did my suppressor go?”.
Built on vanilla firearm classes, so it plays nice with most Workshop gun packs.
Localization: English, Español, Português.
🧪 Upgrades
Each stat can be upgraded up to 10 levels (unless noted), with the following per-level bonuses:
Damage: +0.20 per level (×10)
Range: +0.20 per level (×10)
Critical Chance: +0.10 per level (×10)
Critical Damage: +0.10 per level (×10)
Max Condition: +0.15 per level (×10)
Accuracy: +0.05 per level (×10)
Aim Speed: +0.05 per level (×10)
Reload Speed: +0.05 per level (×10)
Recoil Time: +0.05 per level (×10)
Noise Radius: -0.05 per level (×10)
Noise Volume: -0.05 per level (×10)
Max Hit Count: +1 per level (×2)
Tip: You probably can max something… but doing it across the board will sting. Balance bites back. 😅
⚙️ Progression
Part Cost scales with an arithmetic progression per upgrade level. Each step costs more than the last—challenging, not impossible.
Action Time scales with your settings and skills (see Sandbox). Faster hands, fewer groans.
🎓 Skills
Maintenance: reduces tool wear and failure chance, increases part yield, speeds actions, and gives bonus XP for every mod action.
Aiming: improves upgrade success/quality effects and also helps with cost reductions and timings.
🧰 Sandbox & Balance
Tweak everything from the Sandbox (look for the Universal Custom Firearm page):
Max upgrades and upgrade cost multipliers
Action time multipliers
Base chance to damage tools & tool damage multiplier
Maintenance/Aiming effect multipliers
Base chance to get parts on disassembly
Maintenance XP multiplier
🔄 Quality-of-Life
No lost gear: attachments, magazines, and chambered rounds are automatically moved to your inventory when you take a gun apart.
Works with any weapon mods thanks to vanilla-class integration.
🧭 How To Start
Loot two or more guns of the same type.
Disassemble the worst one for parts.
Repair/upgrade the keeper.
Repeat until your pistol feels like a tiny railgun. (Kidding… mostly.)
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Workshop ID: 3551139118
Mod ID: GRM-MyCustomFirearm