From Lantac, the BMDA(R) Blast Mitigation Device provides a unique blast shield that allows the muzzle brake contained inside to function as normal with regard to muzzle climb mitigation. The design of the Blast Mitigation Device features unique "through" ports that connect the muzzle brakes vertical vents to the outside atmosphere, allowing the brake to function while within the device unlike other systems. The device also features sets of 'diffuser' grids positioned towards the top of the blast shield that assist in allowing gas to vent upwards as well as forwards at the time of firing, assisting even further in muzzle control. Concussive muzzle blast is directed fo Mfg: Lantac Usa