Ultradyne USA 5.56MM/223REM MERCURY Brake Fits AR-15 Rifles w/ 1/2x28 Threads, Black Stainless Steel - UD10670

MERCURY has been meticulously engineered for the .223/5.56 caliber to provide superior recoil reduction and neutralize muzzle rise with a smooth, balanced release of blast energy. Progressive 90 side ports vent combusting gases at intervals that spread out the recoil impulse for efficient, accurate follow-up shots. Like all Ultradyne muzzle devices, a timing nut is included for easy installation.Features:1/2-28 thread pitch416 stainless steelNitride finishIncludes timing nut