Rugged, Low-Profile Steel Block Fits DPMS .308 SASS & Other .936" Diameter Barrels
Ultra-low profile steel gas block is designed to fit under extended-length free-float tubes on the DPMS .308 Semi-Auto Sniper System (SASS) barrel, and other AR-style .308 and AR-15/M16 barrels with a .936" O.D. at the gas block location. Two set screws on the underside keep the block firmly in place. Made of tough, 4140 steel for extra resistance to gas erosion.
AR-15, Issue:10, Page:013
Big Book Catalog, Issue:68, Page:015
SPECS: 4140 steel, matte black phosphate finish. Fits barrels with .936” O.D. at gas block. This will fit in any free float tube with internal diameter of 1.75 (which should be most free float tubes) and this will work with the 308 SASS barrel also.