ModulBullpupAR

v1.1.1·Updated 2025-07-23

For when you really want to bullpuperize your AR15...

About this mod Author’s original text

Modul BullpupAR

When you really want to bullpuperize the AR15 so badly that you're willing to chop the poor thing up to fit! The chassis here includes 4 variants of the bullpup version of the AR15 and BRN-180/47.

The standard two are the classic AR-15 and M16A4 chassis with the option to fire full auto or 3 round burst. Operation of the weapons are similar to any bullpups, grab the mag from the rear (no button presses here!) and also fire selector from the rear to switch between safe, single and full/burst, with the main hand controlling either safe or fire.

Only the uppers are able to be customized via AR2 and AR2+, with some of the customization retained due to the scripting nature of the weapons.

The BRN-180 in bullpup format also functions similar, alongside with the BRN-47 for all your quasi-AK bullpup action.

Also added in the chassis is the ability to have the handguard extension so that you can have an additional grip point or attaching MLOK style attachments.

All comes with some form of camo options.

And a sleek top cover too for avoiding you cheekwelding the sharp picatinny! (Also has camo options, drop it in to the modul workshop platform!)

Recommend the BRN microbolt to avoid clipping issues with the other bolts

Photos courtesy from Tweedy

Features

  • BullpupAR15 in modular format!
  • Has majority of the customizations inbound!
  • Chassis has multiple camo options, alongside with the extended handguard that accepts MLOK and the top cover
  • Can be found in Firearms > ModulAR

Thank you Tweedy and Admirailgun for the support!

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-OtherLoadercityrobo-ModularWorkshopVolks-ModulBRN47Not_Wolfie-AR2_Plus

File & checksum

Filename
ModulBullpupAR-1.1.1.zip
File size
128.8 MiB