Modern Weapon Replacer - AK400
⚪ Last updated 2022⚠️ Install Order · 3 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 2.0% endorsement rate — high engagement, a strong quality signal
- 🏆 #49 of 329 Weapons mods in this game by downloads
📋 About This Mod
Replaces vanilla assault rifles, combat rifles, handmade rifles, pipe guns, plasma guns, and laser weapons (institute guns, laser guns, laser muskets) into FX0x01's AK400 weapon mod
Replaced weapons will spawn with the following modifications:
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[]All replaced weapons will be named "AK400" in-game
[
]Replaced weapons will have the option to be chambered in 5. 56 or 7. 62 depending on you choices in the installer[]Replaced weapons will spawn with a random low-tier receiver
[]Replaced weapons will spawn with a random stock
[]Replaced weapons will spawn with a random barrel
[]Replaced weapons will spawn with a random magazine
[]Replaced weapons will spawn with a random muzzle (Standard or PST-1)
[]Replaced weapons will spawn with a random sights position (A or B)
[]Common replaced weapons will spawn with a pool of selected reflex sights or with an iron sight
[]Rare replaced weapons will spawn with the full array of reflex sights and scopes
[]Rare weapons may spawn with a random right rail modification (LaserSight or none)
[]Rare weapons may spawn with a random left rail modification (Flashlight or none)
- Rare weapons may spawn with a random material/camo (Standard or Tan)
This mod includes changes to super mutant leveled lists. When selecting any plugin that replaces assault rifles or laser guns, super mutants will instead spawn with pipe guns. If you choose to replace pipe guns, super mutants will instead spawn with assault rifles and laser guns.
Optional plugins are included that completely override Super Mutant leveled lists and gives them either melee weapons, miniguns, or missile launchers. Place the Super Mutant Leveled List Override esp very low in your load order to allow it to win any leveled list conflicts
Compatibility- Plugins are available that are compatible with Tactical Reload Framework by Bwones and the AK400 Tactical Reload patch from the AK400 files page
- Compatible with CALIBER - COMPLEX by robbythekidd
Installation
1. Download and install: AK400 - Assault Rifle v2. 0 by FX0x01 - https://www.nexusmods.com/fallout4/mods/36873
2. Make sure the esp for that mod is activated and all the assets from it are in your Fallout 4 data folder
3. Install this mod. Select the replacer you want in the installer and click finish
Troubleshooting1. Place the replacer esp(s) lower or last in your load order. It's possible you have another mod activated that is overwriting the replacer data or your mod manager is auto sorting the esp's in a poor configuration2. If an NPC/Companion weapon is broken, you can i
This mod replaces several vanilla weapons with FX0x01's AK400 model, offering a visual overhaul for Fallout 4. It has 440 endorsements and over 22,000 downloads, last updated in March 2022. For players who want a modern AK look without changing gameplay.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Solid community backing (440 endorsements) and over 22k downloads
- Gives vanilla weapons a fresh, modern look without messing with balance
- Simple concept: swap models, keep gameplay intact
⚠️ Cons
- Last updated in March 2022 — might have compatibility issues with newer game patches
- No detailed list of which weapons are replaced, so you'll have to test in-game
- Requires FX0x01's AK400 mod as a dependency, which isn't included
For Fallout 4 players who want a modern AK-style rifle to replace the vanilla guns but don't want to deal with gameplay overhauls. If you're into weapon replacers that keep things simple, this is for you. Skip if you want new weapons with unique stats or animations.
💡 Beginner Tips
- Make sure you have FX0x01's AK400 installed first, or the replacer won't work.
- Use a mod manager like Vortex to avoid overwriting conflicts with other weapon mods.
- Check the mod's posts section for any known compatibility patches with popular weapon mods.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- cyanide4suicide
- Version
- 3.0
- Downloads
- 22,165
- Endorsements
- 440
- Category
- Weapons
- Created
- 4/29/2019
- Updated
- 3/18/2022
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
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