Aero Precision M4E1 Upper Receiver + Black Nitride BCG Combo Review

About Aero Precision M4E1 Upper Receiver + Black Nitride BCG Combo

Aero Precision Gen 2 Stripped Upper Receiver Aero Precision’s new Gen 2 7075-T6 Forged, Stripped Upper Receiver gives you that angled billet look without the high cost or the fitment issues many builders experience when trying to mate a non-matching billet upper/lower receiver. Aero precision has machined this stripped upper to accept a standard AR-15 barrel nut and mil-spec upper parts (Forward Assist & Dust Cover not included). Gen 2 Features: New enhanced forging that gives the upper receiver a “billet look” Includes Threaded Roll Pin for ease of forward assist installation Features: M4 Feedramps .250 takedown pin holes Lazer engraved T-marks Aero Precision 5.56 Black Nitride Bolt Carrier Group Features: M16-cut carrier Machined from 8620 steel Carrier has forward assist serrations Black Nitride Finish – advanced lower friction coating that minimizes the need for lubricants and cleaning Properly staked gas key 5.56 Bolt is machined from Carpenter 158 tool steel Shot peened HPT tested/MPI marked Black o-ring insert on extractor High quality BCG

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