DescriptionAIM7 ATOLL AA-2.5A Muzzle Can Barrel Shroud 223 cal Two function.Material: Atoll, Spacer, Barrel Adapter (T6 Aluminum) Alpha Cloak (Stainless Steel)Overall: 3.85″ InchesPackage:1 x ATOLL 1/2×28 tpi (2569) 1 x 1.5″ SPACER (2917) 1 x ALPHA CLOAK front cap (2806) 1 x BARREL ADAPTER (2571) Muzzle Can :This is the part that attaches directly to the barrel’s end. It likely uses threads to screw onto the barrel.The “2.5″ designation might indicate a design that redirects the muzzle blast (loud sound and pressure wave) forward by 70% while dispersing it somewhat to the sides. This could potentially offer some level of concussion reduction for the shooter while still allowing some venting of gases.The specific design of the internal chambers in the muzzle can and the direction of the vents would determine how effectively it reduces noise and flash.Barrel Shroud :This shroud covers a portion of the barrel, likely attaching to the base of the muzzle can.It may offer some protection to the barrel from scratches or bumps.The ventilation holes along the side of the shroud might help with heat dissipation by allowing hot air to flow away from the barrel.
