Even so compensators and flash hiders are quite popular among sport shooters, they also have some disadvantages. If you are lined up on a shooting range next to each other, the neighbor will get the full muzzle blast sometimes including particles and smoke residue. This is not only awkward but could also be dangerous.
When shooting from the prone position, the muzzle blast will raise dust, dirt and even small stones. This is not only irritating, it also blocks the shooters vision and can lead to jams. In these cases, the B&T Blast Deflector is the perfect solution. It is installed on all Rotex-IIA of NATO/Rotex-V compatible flash hiders and compensators (.223/5.56mm and/or .308/7.62 mm) in less than five seconds. The B&T Blast Deflector slows down the hot gases leaving the muzzle and prevents lateral dispersion. Thus any endangerment of neighboring shooters as well as the dispersion of dirt is prohibited. Due to its weight of a little more than 200 gram the B&T Blast Deflector helps to reduce the muzzle movement when shooting , enabling the shooter for fast follow up shots. The B&T Blast Deflector does not reduce the sound signature.
You will find both models here.