Made from 7075 T6 Cerro Forgings These are the Armalite style .308 80 percent Lower receivers "A" pattern are made to fit both the DPMS and SR-25 magazines. The receivers carry some of the highest quality features out there on the market including a tear drop trigger guard machined into the lower, reinforced pivot pin and a generous magazine well to aid in loading. Like all of our products we hold them to the tightest tolerances and stand by them for life. The operations left to be completed are as follows/ fire control group, trigger pin, hammer pin, trigger slot and safety selector. This is a not an FFL item. This is not a complete receiver and still requires machining to be done. We have a copy of the ATF determination letter and the determination update stating that it is not a firearm.