.750 DIA LOW PROFILE GAS BLOCK. THESE GAS BLOCKS ARE MACHINED IN HOUSE FROM 4140 STEEL FINISHED WITH A BLASTED MANGANESE PHOSPHATE FINISH.THESE ARE THE SAME GAS BLOCKS USED IN OUR KAK INDUSTRY UPPER ASSEMBLIES COMES COMPLETE WITH SET SCREWS AND GAS TUBE ROLL PIN READY TO INSTALL ON YOUR .750 DIA BARREL VERY LOW PROFILE TO CLEAR MOST RAIL SYSTEMS..
