458 SOCOM AR15 Barrel 

The 458 SOCOM is a "maximum stopping power" round for the AR15 platform developed by Tromix with the US Special Operations Command after finding that multiple shots were often required to incapacitate Somali combatants in Mogadishu. 458 SOCOM ammunition is available with lighter (250 grain), supersonic projectiles and heavier (450-600 grain) subsonic projectiles that can be effectively suppressed. Short-barrel and long-barrel configurations are possible depending on the expected tactical situation. A 458 SOCOM specific bolt (or bolt carrier group) and upper receiver are required, and we recommend using metal (not polymer) magazines.

AR15Parts.com barrels are sourced from top US manufacturers including Ballistic Advantage, Shaw Barrels, Swan Machine, Wilson Arms, Wilson Combat, ZRO Delta, and others.

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