The popular Phantom design flash hider will effectively control muzzle flash with its five longitudinal vents. Muzzle gases are directed up and out to control muzzle rise, and lack of a bottom port reduces dust signature when shooting prone. The grooved base accepts training attachments and sound suppression devices for LE / military personnel. It is threaded ½” – 28 t.p.i. for all standard barrels.  Crush washer required for proper port timing. CNC machined from high quality steel with a black manganese phosphate finish – made in the U.S.A.