Cmc Ar-15 Lpk W/flat Trigger

The CMC AR-15 Lower Parts Kit with flat trigger is a purpose-built component package designed for AR-15 builders and gunsmiths who demand crisp, predictable trigger control. Centered around CMC Triggers' 3.5-pound single-stage flat trigger, this lower parts kit delivers the essential components needed to complete the fire control group and trigger assembly of your AR platform rifle. The flat trigger profile provides a familiar finger break point for shooters transitioning from precision rifles or those seeking reduced pre-travel and cleaner break characteristics compared to curved trigger designs.

This kit contains 12 components covering the complete lower parts assembly: the single-stage trigger with flat geometry, bolt catch assembly with plunger and spring, mag release button with spring mechanism, safety selector with detent and spring, buffer retainer and retainer spring. The 3.5-pound pull weight sits in the middle range for AR-platform rifles—heavy enough to maintain consistent trigger discipline and avoid inadvertent discharge, yet light enough for precision fire and rapid follow-up shots during training or duty applications. All components are compatible with standard mil-spec lower receivers. Note that the pistol grip is sold separately, allowing builders to select ergonomic options that match their hand size and shooting style.

This lower parts kit suits amateur builders stepping into their first AR build as well as experienced armorers managing fleet maintenance or custom builds. The flat trigger geometry appeals to shooters who log significant time at the range, hunters requiring precise shot placement, and operators evaluating different trigger profiles for duty or tactical training. By purchasing a complete lower parts kit, builders avoid the frustration of sourcing individual components and reduce the chance of missing or incorrect parts during assembly.

CMC Triggers is recognized in the AR aftermarket for manufacturing triggers to tight tolerances. This lower parts kit packages their flat-trigger design with all supporting springs, detents, and retention hardware, making it a complete fire control solution for AR-15 builds where users want quality components without piecing together kits from multiple vendors.