Quality, Rugged, Match Grade Upper Unit
Fully machined from aircraft grade aluminum alloy, with extra material around the bolt carrier to provide a strong, rigid, platform for mounting heavy match barrels. Integral Picatinny-style scope rail gives complete flexibility for mounting all types of sight systems. Accepts Weaver-style rings. Eliminates the forward assist and ejection port cover for easier operation and smoother profile. High Rider - 1" high rail height is correct for scope mounting with low rings. No need for a cheek pad; permits large objective scopes to clear the hand guards. Lo-Pro - Standard height rail allows use of detachable carry handles. Convenient mounting for electronic dot sights.
AR-15, Issue:09, Page:001
Big Book Catalog, Issue:67, Page:003
SPECS: Aircraft aluminum alloy, black, hardcoat anodized.
Teflon coated. .250" (6.3mm) pivot pin dia. .254" (6.47mm) thick