Dead Air Sierra 5 with Xeno Adapter & 1/2-28 Xeno Flash Hider

Specifications: CALIBER RATING: 5.56 NATO 224 Valkyrie ENERGY RATING: 2200+ ft lbs BORE DIAMETER: 5.56mm LENGTH (NO ADAPTER): 4.87 inches LENGTH (W/XENO): 5.72 inches DIAMETER: 1.5 inches WEIGHT (NO ADAPTER): 10.8 ounces WEIGHT (W/XENO): 13.3 ounces MATERIALS: Stellite® baffles stainless steel FINISH: Black Cerakote® USAGE: Ideal for heavy firing schedules BARREL RESTRICTIONS: None FULL AUTO RATED: Yes