Hardened stainless steel gas tube resists heat and corrosion and ensures consistent gas flow to help your rifle cycle properly. Precise construction helps ensure quality for custom rifle builds. Vent hole size is optimized for semi-auto AR-15 operation.
AR-15, Issue:09, Page:012
Big Book Catalog, Issue:66, Page:012
Stainless steel, natural finish. 9 3/4" (25cm) long, For use on Rifles with carbine-length gas systems.