The JP Enterprises Recoil Eliminator is designed specifically for .22 caliber AR-15 rifles to reduce felt recoil and muzzle rise with 1/2-28 threading for secure attachment.JP Enterprises Recoil Eliminator for AR-15 platforms.22 caliber compatibility1/2-28 thread pitch for standard AR-15 barrelsDurable steel construction with black finishReduces recoil and improves shooting controlIdeal for competitive shooters and enthusiasts looking to improve accuracy and shooting comfort with their .22 caliber AR-15 rifles.