Colt M4A1 Block II CQBR
🟠 Updated over a year agoPreview

🔍 Analysis
- 👍 1.0% endorsement rate — high engagement, a strong quality signal
- 🏆 #60 of 790 Weapons mods in this game by downloads
📋 About This Mod
Colt M4A1 Block II CQBR/Mk18 - 2 Weapon Additions with Custom Attachments
🤖 AI-enhanced — based on mod data
Adds the Colt M4A1 Block II CQBR/Mk18 to Fallout 4 as two weapon additions with custom attachments. A well-received weapon mod with 440 endorsements and over 43,000 downloads, last updated September 2025.
✨ Key Features
Adds two weapon variants: the Colt M4A1 Block II CQBR and the Mk18.
Includes custom attachments for the weapons.
📊 Pros & Cons
✅ Pros
- Solid community backing with 440 endorsements and 43k downloads.
- Two weapon variants in one mod gives you options without extra downloads.
- Custom attachments mean you can tweak your build to your playstyle.
⚠️ Cons
- Only two weapons—if you want a full arsenal, this is just a start.
- No mention of compatibility with other weapon mods or overhauls.
- Last updated in September 2025—might not be actively maintained for future game patches.
🎯 Is This For You?
For Fallout 4 players who want a realistic, modern AR-platform rifle with customization options. If you're a military shooter fan or just want a solid M4-style weapon, this is a solid pick. Skip if you're looking for a complete weapon pack or sci-fi guns.
For Fallout 4 players who want a realistic, modern AR-platform rifle with customization options. If you're a military shooter fan or just want a solid M4-style weapon, this is a solid pick. Skip if you're looking for a complete weapon pack or sci-fi guns.
📦 Install:Easy· Under 1 minute
💡 Beginner Tips
- If you're on PC, use a mod manager like Vortex or Mod Organizer 2 to install and manage this mod easily.
- Check your load order—place this mod after any weapon overhaul mods to avoid conflicts.
- In-game, look for the weapon in the crafting bench or use the console command 'help m4a1 4' to find the ID if you can't locate it.
📊 Mod Details
- Game
- Readyornot Mods
- Author
- HaveDoughnut
- Version
- 1.1
- Downloads
- 43,311
- Endorsements
- 440
- Category
- Weapons
- Created
- 8/17/2025
- Updated
- 9/5/2025
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Ready or Not Mods
Download from Nexus Mods.
📖 Full step-by-step install guide for Ready or Not →
Visit the official mod page for specific installation instructions for this mod.
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