NBS 1/2-28 Extended Flash Hider – .223/5.56
The A2 Bird cage Flash Suppressor is the standard muzzle device of the US Armed Forces and found on most M4’s, M16 and AR15 rifles.
A flash hider is a muzzle attachment for a firearm used to quickly disperse the burning gases emitted from the barrel so as to limit the amount of flash seen by the shooter.
This will fit other popular caliber such as .223, 5.56 and .22