Ballistic Engineering AR Core Trigger Curved 4lb Black. A rugged drop-in trigger that provides the discerning shooter true matchgrade performance with MIL-SPEC reliability. Specifications for Ballistic Engineering AR Core Trigger: Manufacturer: Ballistic Engineering Color: Black Trigger Material: 6061 Aluminum Trigger Pull Weight: 4 lb Trigger Pin Size: Mil-Spec Gun Make: AR Platform Gun Type: Rifle Finish: Anodized Features of Ballistic Engineering AR Core Trigger 1.5 degree trigger with one of the shortest breaks and resets available for your rifle Ballistic Engineering's patented disconnect system for superior reliability Full mass hammer combined with full power hammer spring for reliable ignition A2 toolsteel internals Package Contents: Ballistic Engineering AR Core Trigger Allen Wrench Installation Instructions Ballistic Engineering TRAR-CORE-CRV: AR Core Trigger Curved 4lb Black