KAC Knights Armament Company SR-15 V1 Lower Receiver Builders Kit
Manufacturer: Knights Armament Company
Part Number: KM123689
Product Description:
These are “old style”, not the V2 new ones. They have all the proprietary parts (ambi mag release, ambi bolt release, etc.) as well as trigger guard and takedown/pivot pins; does NOT have trigger, safety, or buffer tube/spring/weight/castle nut/end plate.