Foxtrot Mike's Premium Micro 5.56 Muzzle Brake re-directs the concussive blast of 5.56's to counteract recoiland muzzle rise. By reducing gasses at the 2:00 and 10:00, it helps create a negative recoil impulse, and pushes the barreldown for faster follow up shots. Helps reduce dust signatures when shooting prone too. Elegant design allows for simpleinstallation, by using a 7/8" socket. Easily achieve appropriate torque when using a 7/8" socket and torque wrench.