BIG BORE COMPLETE UPPER RECEIVERS

$934.99$1,019.99

Features:

  • Obsidian Arms Forged Big Bore Upper Receiver: With forward assist or Slick Side without forward assist
  • Obsidian Arms 15″ Handguard: KeyMod Full Rail or KeyMod Competition Rail
  • Satern 16″ Barrel: .450 Bushmaster, .458 SOCOM, or 12.7x42mm
  • Obsidian Arms Colossus Brake
  • Charging Handle
  • Complete Bolt Carrier Group
  • Colors: Black (Hard Coat Anodized), Flat Dark Earth (Cerakote), or Olive Drab Green (Cerakote)
SKU: N/A Category:

Description

The Obsidian Arms Big Bore Complete Uppper Receiver is fully assembled and ready to use. The perfect option for anyone wanting to shoot the big bore cartridges without needing to build from individual peaces.  Will attach to any AR-15 spec lower receiver.

Additional information

Weight 5.7 lbs
Dimensions 31 × 3.5 × 3.5 in
Colors

Black (Hard Coat Anodized), Flat Dark Earth (Cerakote), Olive Drab Green (Cerakote), Crimson Red (Cerakote)

Calibers

.450 Bushmaster, .458 SOCOM, 12.7x42mm

Barrel Finishes

Bead Blasted, Black Teflon, Standard Polish

Forward Assist

Yes, I want a forward assist, No, I want a slick side

Handguard

KeyMod Full Rail, KeyMod Competition Rail

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