Blends With Most Forged Billet Lower Receivers
Machined from high strength 6061 aluminum, this stripped flat top upper receiver boasts thicker walls for increased strength. Upper is cut for M4 feed ramps and includes T-marks in the rail slots. The mil-spec hardcoat anodized finish resists chipping and abrasions. Designed to accept standard forward assists and ejection port covers.
AR-15, Issue:11, Page:005
Big Book Catalog, Issue:68, Page:005
SPECS: 6061 aluminum, hardcoat anodized, black. Uses .250" (6.3mm) takedown and pivot pins.