The XM4 RAW - A Gauss Rail Assisted Hybrid Weapon
⚪ Last updated 2017⚠️ Install Order · 5 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 3.3% endorsement rate — high engagement, a strong quality signal
- 🏆 #253 of 367 Weapons mods in this game by downloads
📋 About This Mod
XM4 RAW
Videos
Here's some videos by commanderxbox and AlChestBreach respectively, featuring the weapon in action, I would like to thank them both for taking the time to review and play with the weapon, thanks guys.[DISCLAIMER You do NOT have to/aren't supposed to reach through the forcefields to acquire the weapon and its mods as is shown in commanderxbox's video, there is a wall terminal opposite the forcefields that shuts down the fields if you can hack it. Also, Al's video is a perfect example of what the mod looks and acts like when you don't have NVSE and/JIP installed.]
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Lore
I have included lore for the weapon in the mod, but in case some things are unclear, here’s a rundown. The XM4 RAW is a prototype weapon designed in a Pre-War USAF research facility located in the Mojave dessert desert. Based on designs provided by the researchers that worked on the X277 "Viper" magnetic Rail cannon, and the pre-existing M4 (Assault Carbine in FNV), the XM4 RAW design was completed just days before the bombs went off. BTW, for anyone wondering about the name, my reasoning is thus:“’X’ – US Military Designation for experimental weapons –‘M4’ – Name of the weapon being experimented on – ‘R. A. W.’ – Rail Assisted Weapon”
The weapon utilises magnetic rails (Or coils, depending on who you ask, lol) to accelerate a Ferromagnetic bullet, fired from a low power casing, down the barrel to extremely high velocities. This allows the weapon to fire low power, quiet, maintenance friendly rounds that have extr
The XM4 RAW is a ballistic-energy hybrid weapon for Fallout 4 that changes its behavior based on the ammo loaded. It includes formlist and lore-friendly integration, plus a select fire mode. With 600 endorsements and 18,339 downloads, it's a well-received weapon mod for players wanting a versatile hybrid option.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community favorite with 600 endorsements and over 18k downloads
- Ammo-dependent behavior adds tactical depth—load different rounds for different situations
- Lore-friendly integration means it fits into the game world without breaking immersion
⚠️ Cons
- Last updated in 2017—may have compatibility issues with current game patches
- Requires you to find or craft the weapon and ammo, which might not be immediately obvious
For Fallout 4 players who want a versatile weapon that adapts to their ammo supply, especially those who enjoy hybrid energy/ballistic builds. Skip if you prefer straightforward weapons without ammo-based gimmicks.
💡 Beginner Tips
- Check the mod's forum or comments for a list of compatible ammo types, since the description doesn't specify them.
- If you're using a mod manager, install via NMM or Vortex to avoid manual file placement issues.
- Test the weapon with different ammo types in a safe area to see how it changes before relying on it in combat.
📊 Mod Details
- Game
- New Vegas Mods
- Author
- Quicksilver500
- Version
- 1.4
- Downloads
- 18,339
- Endorsements
- 600
- Category
- Weapons
- Created
- 7/14/2017
- Updated
- 8/25/2017
🔧 How to Install New Vegas Mods
Download from Nexus.
📖 Full step-by-step install guide for New Vegas →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for New Vegas commands, item IDs, and more.
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