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It offers quick and easy one-hand-on, one-hand-off attachment and detachment. The 3-port design effectively reduces felt recoil and muzzle climb. Each ASR muzzle brake comes with a shim set and rocksett for easy application.<br />\r\n<br />\r\n<strong>Specifications:</strong></p>\r\n\r\n<ul>\r\n\t<li>UPC: 817272010336</li>\r\n\t<li>Part #: AC142</li>\r\n\t<li>Caliber: 223 cal / 5.56mm</li>\r\n\t<li>Thread Pitch: 1/2 x 28</li>\r\n\t<li>5.56 NATO Caliber Cartridges with Barrel Threaded 1/2"x28</li>\r\n\t<li>ASR suppressor attachment system compatible</li>\r\n\t<li>When used by itself, effective recoil reduction device</li>\r\n\t<li>Steel</li>\r\n\t<li>Matte Black</li>\r\n</ul>\r\n<br />\r\n<strong>Compatible SilencerCo Suppressors:</strong><br />\r\nSpecwar, Saker, Omega, Hybrid, and Harvester Big Bore ASR mounting system<br />\r\n<br />\r\n<strong>Other variations sold separately:</strong>\r\n\r\n<ul>\r\n\t<li>6.5mm: 1/2 x 28 (AC4753)</li>\r\n\t<li>6.5mm: 5/8 x 24 (AC4752)</li>\r\n\t<li>.30 cal / 7.62mm: 1/2 x 28 (AC1282)</li>\r\n\t<li>.30 cal / 7.62mm: 5/8 x 24 (AC591)</li>\r\n\t<li>.30 cal / 7.62mm: 9/16 x 24 RH (AC1276)</li>\r\n\t<li>.355 /9mm: 9/16 x 24 (AC4766)</li>\r\n\t<li>.338 cal: 5/8 x 24 (AC857)</li>\r\n\t<li>.338 cal: 3/4 x 24 (AC858)</li>\r\n\t<li>.338 cal : M18X1 (AC856)</li>\r\n\t<li>.338 cal: M18X1.5 (AC855)</li>\r\n\t<li>.458 cal: 3/4 x 24 (AC2631)</li>\r\n\t<li>.458 cal: 5/8 x 24 (AC1733)</li>\r\n\t<li>.458 cal: 5/8 x 32 (AC1557)</li>\r\n\t<li>.458 cal: 11/16 x 24 (AC1961)</li>\r\n</ul>\r\n\r\n<ul>\r\n</ul>\n\n"