One in the Chamber (or OITC if you prefer) is an addon pack for Immersive Vehicles that reshapes handheld munitions-based combat! With a balanced selection of firearms to choose from, you'll have no issues with facing down those pesky mobs and dueling your friends - or enemies!
Don't worry about reloading, you've always got one in the chamber as these weapons draw ammo directly from your inventory; just like the vanilla Minecraft bow!
More information can be found or requested in the Official IVLabs Discord Server
As of April 26th 2026 this mod is distributed under the GNU General Public License v3.0, pack is provided "as-is" from its original author, pack may be freely distributed and modified, this license applies to ALL derivatives and forks.
How to Install One in the Chamber [MTS/IV] Quick and Powerful Guns! (Mod)
One in the Chamber [MTS/IV] Quick and Powerful Guns! by cbcosmic is verified for Forge, Neoforge across Minecraft versions 1.12.2, 1.16.5, 1.18.2, 1.19.2, 1.20.1, 1.21.1, 26.1, 26.1.1 (latest release: 1.0, file size: 750 KB). Follow the steps below to install it safely from ModCraft.tv:
- Click the Download button above and select your Minecraft version (1.12.2, 1.16.5, 1.18.2, 1.19.2, 1.20.1, 1.21.1, 26.1, 26.1.1) and platform (Forge, Neoforge).
- Make sure you have the compatible loader or environment installed for Forge, Neoforge.
- Move the downloaded One in the Chamber [MTS/IV] Quick and Powerful Guns! file into your Minecraft
.minecraft/modsfolder and launch the game.
All Versions
+ Add Version- 9 ranged weapons (firearm-stylized)<br>
- 1 bench<br>
- 3 crafting items<br>
- 11 ammo items (most weapons use one type, some may have more)
- 9 ranged weapons (firearm-stylized)<br>
- 1 bench<br>
- 3 crafting items<br>
- 11 ammo items (most weapons use one type, some may have more)