Gas Block Fits Standard size .750" AR-15 and AR-10 rifle Barrels, and it is machined from solid 105 steel finshied with black matte Military type nitride finished. This Low Profile Gas Block was designed to allow an extended handguard fit over and cover the gas system area of the rifle barrel. This AR-15/AR-10 Gas Block includes 2 steel set screws to hold the block in place. Compatible with direct impingement gas system. ATI Limited Lifetime Warranty.
We Recommend AR-15/M16 Gas Block Pinning Jig To Go With This Item # PJGBJ.