How do I install One in the Chamber [MTS/IV] Quick and Powerful Guns!?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does One in the Chamber [MTS/IV] Quick and Powerful Guns! work with?

The listing gives Minecraft 1.16.5, 1.18.2, 1.19.2, among others. This is the version stated by the author or source site, not something we verified ourselves.

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One in the Chamber [MTS/IV] Quick and Powerful Guns!

by boot2big · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Forge2 builds
Mod loader NeoForge1 build

Minecraft version

Minecraft 1.16.5–26.1.2Newest
Minecraft 1.12.2

Minecraft 1.16.5–26.1.2Newest

⬇ Download for 1.16.5–26.1.2 · Forge ⬇ Download for 1.12.2 · Forge ⬇ Download for 1.16.5–26.1.2 · NeoForge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

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.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.16.5, 1.18.2, 1.19.2
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Ships as One_in_the_Chamber-1.0-1.16.5-to-1.21.1.jar — drop this file into the mods folder
Download size: 750 KB
Download link checked 29 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

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