Unrivaled Technologies Siege Brake 9mm (SB2-9mm)

Unhappy with current 9mm muzzle device options for pistol caliber carbines and submachine guns, Unrivaled designed their own. Current market offerings seem to be either a rifle style muzzle brake bored to 9mm or a vertical compensator. The rifle style brakes weren’t providing enough downforce while the vertical comps pushed down too much for them.

Unrivaled settled on a medium downforce design with “tuning holes” that can drilled out to increase down force and/or side to side force if desired. Due to to the much lower gas volume and pressure of 9mm compared to centerfire rifle, they went with large diameter brake baffles to maximize surface area and effectiveness. The generous baffle spacing allows distance for the gas to vector away from the bore line and impact baffles.

• Compensating Muzzle Brake – Reduces rear recoil as well as compensates for muzzle climb
• 2.8″ Length
• Will make 16″ overall length on 14″ or longer barrels
• 3.75oz Weight
• Large diameter to maximize surface area hence performance from the lower gas volume of 9mm
• Medium amount of downforce
• Tunable via opening up “tuning holes” on top and sides with a drill (refer to instructions).  Tuning not required
• Fits 9mm PCC’s or Subguns with 1/2″-28 barrel threads
• Includes crush washer
• Brakes are bead blasted then go through QPQ Black Nitride giving them a slightly matte black finish