Permanent Interior Lubrication For Less Wear, Smoother Operation
Final machined from a 7075-T6 forging, this stripped mil-spec flattop upper receiver features M4 feed ramps for reliable round feeding with short gas systems. A slick, dry film lube applied to the interior cuts down on wear, helps keep the action moving smoothly, and cuts down on fouling. Picatinny top rail is T-marked.
AR-15, Issue:10, Page:104
Big Book Catalog, Issue:68, Page:005
SPECS: 7075 T6 aluminum, hardcoat anodized, matte black finish. Fits standard AR15/M16 lower receivers with .250" pivot/takedown pins. ½ lb. (226.8g) wt.