Maxim Defense MXM47709 Hate Brake 30 Cal (7.62mm), 5/8"-24 tpi, 1.50" D Black DLC Stainless SteelA common problem in short barrel PDWs with low pressure cartridges is reliable cycling. Maxim Defense Hate Brake muzzle booster is designed to regulate firearm exhaust gases to ensure PDWs cycle more reliably. The primary design features include the redirection of gasses, decreasing the flash signature, significantly reducing recoil, and increasing accuracy. The HATE BRAKE installs with a 3 8 drive socket from the front, enabling it to be installed