![One in the Chamber [MTS/IV] Quick and Powerful Guns!](https://cdn.modrinth.com/data/aSL6bezT/726af11e53ba6d214fe6be8fdc3372f688595352_96.webp)
One in the Chamber [MTS/IV] Quick and Powerful Guns!
Content pack for Immersive Vehicles featuring an arrangement of firearms.
Screenshots
About this Mod
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.
Available Versions
How to Install One in the Chamber [MTS/IV] Quick and Powerful Guns! on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (26.1).
Install Mod
Open the mod browser in the dashboard and search for "One in the Chamber [MTS/IV] Quick and Powerful Guns!". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1, 1.21.1, 1.20.1 (+4 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
One in the Chamber [MTS/IV] Quick and Powerful Guns! server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1). You can switch loaders with one click in the panel.
Is One in the Chamber [MTS/IV] Quick and Powerful Guns! compatible with forge and neoforge?
One in the Chamber [MTS/IV] Quick and Powerful Guns! officially supports forge, neoforge for Minecraft 26.1, 1.21.1, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with One in the Chamber [MTS/IV] Quick and Powerful Guns! – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if One in the Chamber [MTS/IV] Quick and Powerful Guns! consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Rent Modded Server
Install One in the Chamber [MTS/IV] Quick and Powerful Guns! with just one click on your server.