The CMC 10/22 trigger represents a pinnacle In manufacturing and quality control, featuring state-of-the-art techniques such as precision investment casting for a rust-proof housing. The use of aluminum and precision CNC machining plays a crucial role In enhancing internal clearance, effectively reducing drag and friction to deliver an exceptionally smooth trigger pull. Notably, since 2003, CMC triggers has held the distinction of being the original manufacturer of the Drop-in trigger group for the AR-15/10 rifle. Their proprietary machining process ensures an unmatched surface finish and precise dimensional control on critical sear engagement surfaces. This process achieves an impressive 1-2 RMS surface finish, surpassing the competition's EDMing method, which leaves a 32 RMS surface finish and even outshining the smoothness of a mirror at 0 RMS.