The Tiger Rock Inc. GBA36 AR-9/9X19 Thread Protector optimizes shooting performance by minimizing recoil without unnecessary bulk. This lightweight accessory, weighing just 0.49 oz, measures 1 inch in length and fits 1/2"x36 threaded barrels for effortless installation. Compatible with threaded barrel in 1/2x36 Durable black oxide finish Significantly reduces felt recoil Increases muzzle control and accuracy Includes installation tool for convenience Weight: 0.49 oz Length: 1 inch Diameter: 0.66 inch Enhance your shooting experience with the Tiger Rock Inc. Thread Protector, delivering improved performance shot after shot.