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RSR Part #: RAFU16-458SOC-15MHR Manufacturer Part #: CFU16-458SOC-15MHR

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Radical Firearms, Complete Upper Assembly, 458 Socom, 16" Barrel, .936 Gas block, 15" MHR Handguard, Panzer Muzzle Brake, Black Finish, Includes Charging Handle and Bolt Carrier Group


WARNING: This product can expose you to chemicals including Nickel Acetate, which is known to the State of California to cause cancer. For more information visit

  • Barrel Length: 16"
  • Barrel Profile: Big Bore Profile
  • Muzzle Thread: 5/8X32
  • Upper Receiver Style: M4 Mil-Std with Oversized Ejection Port
  • Handguard Style: M-Lok Hybrid Rail

Product Description

The Radical Firearms 16" Big Bore profile 458 Socom is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. Built with a 15" MHR free float rail system for increased accuracy and keeping your hands cool. No matter what your style of shooting is, Radical Firearms has you covered.