Wikipedia says: The advantages of brakes and compensators are not without cost, however. The most obvious of these to the shooter is the increase in the perceived muzzle blast. The sound and flash normally projected largely away from the shooter are now directed outwards or even backwards towards the shooter. Eye and ear protection for the shooter and nearby spectators are even more essential when a brake or compensator is used.
How can the flash directed towards the shooter?
How can the flash directed towards the shooter?