Due to the forging house cutting us out we are now releasing a new Bootleg Upper Receiver. Machined out of 7075 Billet Aluminum, MIL-SPEC Hard Anodizing, Forward assist eliminated for weight saving and reduced snag risk, for a total of 7.2 oz in weight. Low Profile brass deflector captured dust cover door pin eliminating the need for the E clip. Machined from forged 7075 Aluminum Mil Spec Hard Anodizing Forward assist eliminated for weight saving and reduced snag risk 1.7 oz lighter than a mil spec upper receiver with hardware installed Captured dust cover door pin eliminating the need for the E clip Increased barrel mounting circumference maintaining a solid barrel / receiver interface Interference fit barrel extension interface for increased accuracy