Griffin Armament MK1 AR-15 Mil-Spec Stripped Lower Receiver Black

The Griffin Armament MK1 AR-15 Stripped Lower Receiver is a solid beginning to any build. These lowers are forged from 7075-T6 aluminum with a type III anodized hard coat finish for durability and corrosion resistance. Final dimensions are precision machined to Mil-Spec tolerances ensuring an optimal fit with all your favorite parts. If you are building a premium AR-15, you can't go wrong with the Griffin Armament MK1 Stripped Lower Receiver. Features:Forged constructionType III anodized hard coat finish7075-T6 aluminumSpecifications:Product Type: AR-15 Stripped Lower ReceiverManufacturer: Griffin ArmamentOption: AR-15Trigger Pin Diameter: MIL-SPEC .154Caliber Marking: Multi-Caliber