CMC Triggers 91505 Drop-In AR-15, AR-10 Black Single-Stage Curved 3-3.50 Lbs Ambidextrous Large Pin CMC Triggers Is The Original Manufacturer Of The Drop-In Trigger Group For The AR-15/10 Rifle Since 2003. CMC's Critical Sear Engagement Surfaces Have a Proprietary Machining Process That renders Superior Surface Finish And Dimensional Control. As compared To Their Competition, The techniques Used To Establish a 1-2 Rms Surface Finish as Opposed To EDMing Which Leaves a Petty 32 Rms, compared To a Mirror Which Is 0 Rms. Model: Drop-In Material: 8620 Steel Action: Single Stage Finish: Black Hand: Ambidextrous
