IN STOCK and ready for immediate shipment. Details Brand New TACTICAL MACHINING 80% lower AR-15 receivers. Mil-Spec 7075-T6 Aluminum Alloy, making it the premier corrosion resistant metal. Forged at a pressure of 67,000 PSI, these receivers are guaranteed MIL-SPEC quality. All that is needed to complete the receivers are as follows- fire control group, trigger and hammer pin slots, and the safety selector hole. These receivers DO NOT require an FFL and are not serialized. The receivers can be completed on a home drill press in your garage. $4.95 shipping.