The AR-15 A2 Flash Suppressor is designed for .22 caliber firearms with 1/2-28 threading featuring durable steel construction with a black finish.AR-15 A2 Flash Suppressor for .22 caliber1/2-28 thread pitch for proper fitmentSteel construction for durability and longevityBlack finish for corrosion resistanceClassic A2 design profileEssential for reducing muzzle flash and improving shooting performance on AR-15 platform rifles chambered in .22 caliber with compatible threading.