The RISE Armament Veil AR 15 flash hider effectively minimizes flash in the field. More importantly, it does so without the annoying ringing sound that's typical with a prong-style flash hider. Features: Minimizes muzzle flash to counteract the flash's negative effects on the shooter's night vision Proprietary design virtually eliminates the annoying tuning-fork effect that's common with prong-style flash hiders Sleek, unobtrusive design Purpose-built for tactical use Caliber Group: .22 (2.23 Remington and 5.56 NATO; fits standard 1/2-28 TP barrel) Includes: crush washer for installation Material: 416 stainless steel Finish: black nitride Length: 2.25" Weight: 2 oz.