CMC 81500 AR-15 Lower Parts Kit

CMC Triggers AR-15 Lower Parts Kit

The CMC 81500 lower receiver parts kit provides everything you need to complete your AR-15 build—except the trigger assembly and pistol grip, which you'll source separately. This approach gives you flexibility to customize your firearm with the exact trigger and grip that suits your shooting style.

What's Included

This comprehensive kit contains 17 essential components:

• Bolt catch assembly (catch, plunger, spring, and roll pin)
• Magazine release system (release, button, and spring)
• Safety selector and detent components (safety, detent, and spring)
• Trigger guard with roll pin
• Buffer retainer and spring
• Takedown pins, detents, and springs

Quality Standards

All parts meet or exceed Military Specification (MIL-SPEC) standards, ensuring reliable function and durability. Whether you're a first-time builder or an experienced gunsmith, this kit delivers the quality components you need for a dependable AR-15 platform.

The Build Experience

This lower parts kit is ideal for builders who want to select their own trigger and grip components. By choosing your own fire control group, you can tailor your rifle's performance and ergonomics to your specific needs and preferences.