Simple but effective - Yankee Hill Machine QD Blast Deflector 5.56mm/.30 Caliber YHM-3130

Attaches to YHM QD mounts with solid lockup, the same as their silencers. Directs the muzzle noise and blast forward, as to limit the concussive forces felt by the shooter or others nearby. Best used on a busy range as to not disturb your neighbors, and may prove worthy in the event of an indoor defensive gun use. Only negative is that it will make your brake less effective.