HK21

v1.0.1·Updated 2026-02-09

G3 but belt fed

About this mod Author’s original text

HK21 Machine Gun

G3 but machine gun? Who would have thought!

Standard G3 receiver, but lenghtened to accomodate for a few things, such as heavier barrel, shroud and of course it's unique component, the feed tray to be able to feed belts and its magazine!

Functionally it works like a G3, with a bipod and also the option to mount G3 rail adapters at the top and also having a carry handle, this beast of a machinegun can rip through most enemy sosigs with ease.

Its manual of arms is quite interesting, with the user loading a fresh box magazine, pull the tab open to reveal its link, yank it and slide it through the feed-tray.

To unload it, the user has to fold the tray down to unlatch the belt and then remove the magazine.

Features

  • BIG HK Slap!
  • Belt fed HK machine gun that fires 7.62mm NATO rounds!
  • Has bipod, carry handle and a big heavy barrel!
  • Can mount G3 rail adapter and also muzzle devices
  • Can be found in Firearm > Machinegun

Model from Insurgency Sandstorm; With many thanks to Wickedbadger for the help in getting the texture/models/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-OpenScripts2WFIOST-H3VRUtilities

File & checksum

Filename
HK21-1.0.1.zip
File size
66.0 MiB