• Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash.
• Constructed from 6061 aluminum, and hardcoat anodized for a lifetime of service
• 1/2-36 threads for 9mm AR type pistols and rifles with 1/2-36 barrels
• Includes new crush washer
• Overall length 3.375
• Outside diameter 1.2
• Weight 3.2 oz
• 100% made in the U.S.A.

Make sure your 9mm barrel is threaded 1/2-36 or this device will not work!