Tapco Gas Block Features The Tapco Gas Block is machined from steel and finished in a black anodized coating giving it durability against the heat and fouling generated by an AR platform s gas system. Sized to fit a .750-inch diameter barrel it is a common fitment for many mid-length and carbine-length AR-15 builds making it a straightforward swap for a damaged or non-functioning factory gas block. Its low-profile design sits beneath most aftermarket handguards without interference keeping the overall look of the rifle clean and uncluttered. Reliable gas regulation from this block helps keep the bolt carrier group cycling consistently which supports smooth dependable function. Installation is kept simple with a two-screw mounting system letting builders get the gas block seated aligned and torqued down quickly without specialized tools. This straightforward design makes the Tapco Gas Block a practical option for first-time builders as well as experienced armorers replacing worn gas system components. Because it is purpose-built for the AR platform it pairs naturally with a wide range of barrels and handguard systems already on the market. The Tapco Gas Block offers a simple dependable way to complete or refresh an AR-15 gas system available for sale at GrabAGun. Tapco Gas Block Specifications Manufacturer: Tapco Model: Gas Block Type: Gas Block Compatible Hosts: AR-15 / AR Platform Color: Black Material: Steel Finish: Black Anodized Diameter: .750 Weight: 0.1 lbs Available At: GrabAGun