Aero Precision

Features: New enhanced forging that gives the upper receiver a "billet look" New picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards M4 Feedramps .250 takedown pin holes Laser engraved T-marks Includes threaded forward assist roll pin DOES NOT include port door or forward assist Includes: M4E1 Threaded Upper Receiver in Anodized Black SPECS Specs Made In America? Yes Platform AR15 Material Machined from 7075-T6 forged aluminum Finish Anodized Black Compatibility Works with standard AR15/M16 components Weight(s) 6.9 oz Other Barrel Nut Torque - 50 ft-lbs