AR-15 .458 SOCOM 10.5" Upper Assembly / 10" MLOK / Tanker | Big Bore Upper

.458 Socom

AR-15 .458 SOCOM 10.5" Upper Assembly / 10" MLOK / Tanker

The AR-15 .458 SOCOM 10.5" Upper Assembly offers big-bore power in a compact and efficient design, perfect for your AR-15 platform. Chambered in .458 SOCOM, this upper features a 10.5" barrel with a heavy-profile construction, delivering reliable performance and enhanced durability. It also includes a 10" MLOK free float handguard for maximum customization and lightweight design.

Key Features:

• Barrel:

  • 10.5" .458 SOCOM Barrel, made from 4150V steel, featuring a 1:14 RH twist for optimal bullet stability.

  • Nitride-coated for enhanced durability and wear resistance.

  • Carbine-length gas system with a .875" low-profile steel gas block.

  • Threaded 5/8x32 to accommodate the .458 SOCOM tanker style muzzle brake, which reduces recoil and increases shooting comfort.

• Receiver:

  • A3 flat top upper receiver, made from 7075-T6 aluminum forgings, black hardcoat anodized to MIL-SPEC for strength and durability.

  • Features Socom-style design to handle the high power of the .458 SOCOM cartridge.

  • Includes a forward assist for improved operation.

  • Ejection port is amended to allow for proper ammo cycling, ensuring a smooth shooting experience.

• Handguard:

  • 10" MLOK Free Float Rail provides a lightweight yet durable platform for attaching accessories like lights, optics, and grips.

  • Constructed from aircraft-quality aluminum and black hardcoat anodized for additional strength.

Assembly Details:

• This upper assembly comes fully assembled and ready to mount on any AR-15 lower receiver.

• Does not include BCG or Charging Handle, which can be purchased separately.

Important Notes:

• Made in the USA with high-quality materials for a long-lasting, durable, and reliable shooting experience.

• Images may not represent the exact product

  The AR-15 .458 SOCOM 10.5" Upper Assembly combines power and precision in a compact design, with a nitride-coated barrel, MLOK free float rail, and tanker-style muzzle brake. Perfect for your big bore AR-15 build. Compatible with Big Bore Mil Spec AR-15 Lower Receivers adjusted with 4.3 oz buffer for proper cycling.