CMC Triggers 81500 Lower Parts Kit AR-15 Multi-Caliber *NOTE: Fire control group and grip NOT included.

The CMC Triggers 81500 Lower Parts Kit AR-15 Multi-Caliber is a precision-engineered solution for armorers and enthusiasts looking to complete a stripped lower receiver with professional-grade components. By omitting the fire control group and pistol grip, this kit allows you to customize your build with specific aftermarket upgrades without paying for redundant mil-spec parts. It provides the essential mechanical interface required for duty-ready reliability in any mission-critical AR-15 platform.

Every component within the CMC Triggers 81500 Lower Parts Kit AR-15 Multi-Caliber is manufactured to exacting tolerances to ensure consistent performance under harsh field conditions. The kit includes high-strength steel pivot and takedown pins, a robust magazine catch, and a durable bolt catch assembly along with all necessary springs and detents. These small but vital parts are the backbone of the rifle's operation, facilitating smooth magazine changes and secure receiver lockup during high-volume fire.

Whether you are performing a routine maintenance overhaul or starting a fresh multi-caliber build, the CMC Triggers 81500 Lower Parts Kit AR-15 Multi-Caliber simplifies the assembly process. This kit is fully compatible with standard AR-15 lower receivers and supports various calibers including .223 Remington, 5.56 NATO, and .300 Blackout. Professionals who demand a clean, reliable foundation for their custom trigger setups will find this kit to be an indispensable part of their gear bench.