Dead Air Blast Shroud w/ DA452 KeyMicro Adapter (1 1/8-28) Designed for short-barreled rifles and pistol-caliber carbines;Reduces concussion and flash directed to sides;Improves comfort for shooter and bystanders;Functions as a linear compensator to reduce muzzle rise;Extends muzzle position for added support-hand safety;Compatible with Dead Air muzzle devices or thread adapter;Modular design compatible with other Dead Air accessories;Shroud material: 4140 HT alloy steeltable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 7600 Product Group Code: 7600P Inactive: No Prop65 Applies: Yes Prop65 Cancer Harm: Yes Prop65 Chemical: Lead