Atlas Custom Works 14mm CW Metal RRD-4C Muzzle Brake, Black

Most muzzle devices on the shelf are 14mm CCW, built for western rifle platforms. If you run a rifle with clockwise threading, the options are fewer. This is one of them.

What it does. The RRD-4C is a muzzle brake, not a tracer or flash hider. Its ports redirect propellant gas sideways and rearward to reduce muzzle rise and gas blast inside the barrel, which tightens follow-up shots on full-auto fire and cuts the muzzle climb that pushes your sights off target. It also covers the barrel threads from debris and knocks.

Fit and threading. 24mm clockwise threading, as listed on the spec, fits most 24mm CW airsoft rifles. If your barrel runs a different thread pitch — like 14mm CCW or 14mm CW — this will not fit and you would need an adapter or a brake matching your thread.

Construction. Metal alloy throughout, black finish. At 2.5 inches, it adds noticeable length without turning your build into a long-barrel chrono problem. One item in the box; just screw it on and tighten with a barrel wrench or padded pliers.