The Tiger Rock Inc. GBB36 AR-9/9X19 Thread Protector provides superior shooting accuracy and performance with a lightweight design. Constructed of durable steel and finished with a sleek black oxide, this compact thread protector minimizes recoil, helping you maintain focus even during rapid fire. Installation is quick and easy with the included tool. Compatible with threaded barrel in 1/2x36 Black Oxide Finish Reduces felt recoil Increases muzzle control Tool included for easy installation Weight: 0.49 oz Length: 1" Diameter: 0.66" Material: Steel Experience enhanced stability and shooting performance with the Tiger Rock Inc. GBB36 Thread Protector today.