STT Low Profile AR15 Gas Block .750 Nitride Finish Unique, all-steel gas blocks expand the versatility of your rifle by providing a variety of accessory rail and hand guard mounting options. Especially helpful in customizing short-barreled tactical rifles. Designed Specifically for AR15 ‘s with a barrel .750"" O.D. at gas port. Low Profile version is a low and narrow, one-piece block designed to fit inside most free-float hand guards; allows use of rifle length forearms on carbine length barrels for a clean, streamlined look and added gripping surface. Securely attaches to the barrel with included dual hex head set-screws. Works in conjunction with a Mfg: San Tan Tactical
