The JuggerBrake is a product of Juggernaut Tactical, makers of the Rogue Bullpup Stock for the M14/M1A. It is a dual purpose muzzle brake, designed for long range accuracy and Close Quarter Battle (CQB).
As you can see from this unfinished sample, the three spike Air-Blade design forces gases away from the ground reducing the muzzle blast signature as well as reducing recoil and muzzle climb. It also happens to be pretty nasty and can be used for glass breaching and raking in a pinch (beware blockages) or for purposes.
The JuggerBrake is coming soon and will be available through JuggerBrake