CMC Triggers 95503 Drop-In PCC Black/Silver Flat Trigger Single-Stage 3-3.50 lbs Draw WeightThe CMC AR 15 AR 10 9mm PCC Single Stage Drop In Trigger is the same Flat Trigger Bow shape for your large caliber rifles can now be successfully installed in your pistol caliber carbine. Hammer dimensions have been modified to facilitate the 9mm platform. The Curved Trigger has a smooth feel and ultra clean break. Features multiple trigger pull weights, minimal lock time, controlled hammer weight and balance activated by a wire hammer spring,