GunTec Low Profile Gas Block Features The GunTec Low Profile Gas Block is machined from steel in a .750 inch diameter a standard sizing that fits a wide range of common AR-15 barrel profiles. The short version design keeps the block compact making it well suited for installation under a free floating handguard without interfering with handguard clearance. A brushed matte finish gives the block a clean consistent appearance that matches typical stainless steel components on a build. This combination of standard sizing and a low profile shape makes it a straightforward choice for most AR-15 gas system builds. Three set screws secure the gas block firmly in place on the barrel helping prevent any shifting or loosening that could affect gas system timing under recoil. A roll pin is included with the block providing an additional means of securing the component during installation. Made in the USA the gas block reflects a focus on domestic manufacturing for a part that plays a critical role in reliable cycling. For AR-15 builders and owners looking for a dependable low profile gas block the GunTec option is available for sale at GrabAGun. Guntec Low Profile Gas Block Specifications Manufacturer: GunTec Model: Low Profile Gas Block Material: Steel Finish: Stainless Steel Diameter: .750 Other Features: Three Set Screws Roll Pin Included Available At: GrabAGun