Brownells 75th Anniversary - A Shooting Heritage
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A Big Value Barrel for a Big-Bore AR-15

The Brownells .458 SOCOM AR-15 barrel is an affordable option for your next big-bore AR build, including all of the right features for a high-quality, long-lasting AR that will exceed all expectations.

The Brownells .458 SOCOM AR-15 barrel is constructed from 4150 GBQ mil-spec bar-stock steel, which is stress relieved and nitride-treated for added durability. The barrels are all button-rifled with traditional land-and-groove rifling.

  • 1:14 rate of twist
  • Threaded muzzle for suppressor attachment
  • .875" OD gas block
  • 11-degree target crown
  • 11/16x24 muzzle thread pitch
  • Magnetic particle inspected

The Brownells .458 SOCOM AR-15 barrel is completely made in the USA and ships with a bolt and a removable 3-post muzzle brake.

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Cartridge: 458 SOCOM

Length: 16"

Gas System Length: Carbine

Muzzle Threads: 11/16x24

Twist: 1-14