CMMG 38CA61A Gun Builders Lower Parts Kit for Mil-Spec 308 AR-10/MK3
CMMG Mk3 Gun builders kit includes most of the necessary parts to build up your lower group except the commonly upgraded parts. Does not include Fire Control Group, and pistol grip. Compatible with CMMG Mk3 Lowers and most LR308 type lowers. All parts meet or excede mil-spec.