The PWS CQB COMP has to be the most expensive MUZZLE BRAKE available in 5.56 or .308. This is popular with SBR’s
From the manufacturer:
The CQB Comp, originally designed as part of the MK107 Rifle, provides as much compensation as possible while suppressing flash and sending all the blast forward of the shooter and those next to the shooter.
The CQB Comp features a 2 part design with a removable end cap for ease of cleaning. The primary function is to send all the blast forward while suppressing as much flash as possible. This product in no way compensates the weapon to the level of the FSC556 or our other comps, but it does serve the needs of those that requested its development.
CQB comps ship with the PWS Shim set, therefore additional mounting devices such as peel washers or crush washers are not required.
Aggressive, scallop-type cuts deliver superior gas dispersion to help stabilize the muzzle during periods of sustained fire. Special internal blast chamber with side-facing ports helps reduce recoil with no adverse effect on gas system function. Also provides enough flash suppression to keep flash out of the shooter’s line of sight.