The BATTLEARMS HEX FLASHCAN is a precision-engineered blast diverter designed to direct muzzle flash and gas forward away from the operator while enhancing your firearm's appearance. Constructed from 6061 billet aluminum with a durable black anodized Type 3 hard coat finish.BATTLEARMS HEX FLASHCAN Blast Diverter9mm caliber with 1/2x36 threading1.2 inch outside diameter6061 billet aluminum constructionBlack anodize Type 3 hard coat finishDirects gas and noise away from operatorNote: This product is specifically designed to redirect muzzle blast and enhance firearm aesthetics and is not intended to reduce muzzle rise sound recoil or muzzle flash intensity.