This means that the recoil is effectively halved for well-timed shots of semi-automatic fire, but the Muzzle Brake's recoil control makes it ineffective for continuous, rapid fire. Again, to my surprise, all 3 barrels worked fine here. Choose between the MB and FH depending on whether you want less vertical or horizontal kick.

Re-centering only takes place after the weapon has stopped firing. Surprisingly, all 3 attachments work fine on the MK17 but, as usual, the muzzle brake and flash hider work a little better. Thus, the Muzzle Break reduces this time by 45%. Regardless of how far up the recoil has kicked the gun, be it one bullet or ten, this duration is fixed. The hider is a flash suppressor, and when you pull the trigger, the drawbacks are high. Re-centering time refers to the time it takes for the crosshair to returned to the point at which the player was initially aiming, after the weapon has kicked up due to recoil. Flash hiders’ main purpose is to reduce muzzle flash from the guns while the other reroute the gas to manage the drawback of the firearms. The Muzzle Brake reduces the recoil of the first shot by 45%, along with a 45% reduction for the re-centering time after shots. It greatly reduces the vertical recoil and does not change a weapons horizontal recoil similar to the Compensator and Flash Hider. The Muzzle Brake is a weapon attachment featured in Tom Clancy's Rainbow Six Siege. Barrel 'Reduces the overall weapon kick of single shot firing.'

R6 siege flash hider vs muzzle brake