Masterkey

v1.1.0·Updated 2025-04-14

An attachable pump-action shotgun for AR-15-pattern rifles with an M203 mount. Also includes M203-to-Picatinny and Picatinny-to-M203 adapters!

Screenshots 1 screenshots

About this mod Author’s original text

Masterkey

A shortened Remington 870 shotgun manufactured by the Knight's Armament Company for door breaching purposes, the aptly-named Masterkey offers 3+1 rounds of pump-action lock-shattering action. Compared to the vanilla 870 Picatinny, this Masterkey can only be mounted to weapons with an M203 mounting point (namely the M16s, M4 Carbine, R6000, and C601) and has (in my humble opinion) a better model, better sounds, and the correct magazine capacity. This mod also includes an M203-to-Picatinny adapter, which adds an underbarrel picatinny rail to any gun with an M203 mount.

Features

  • Masterkey (Opens any lock, permanently. Found under "Attachable Firearms" in the item spawner)
  • M203 Mount Picatinny Adapter (An underbarrel gun with the gun part replaced by a rail. Found under "Rail Adapters" in the item spawner)
  • Picatinny Mount M203 Adapter (Bubba got a little crazy with this one - a chunk of M16 barrel and handguard secured to a pic rail so you can Masterkey on anything with a rail!)

Attributions

  • The Masterkey model is by Mattias H on Gumroad, check it out here!
  • Sound effects are by UwU4181, thank you again!

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.

Dependencies

Install these first, or the mod will not work:

devyndamonster-OtherLoader

File & checksum

Filename
Masterkey-1.1.0.zip
File size
39.1 MiB