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Obsidian Arms Forged Big Bore Upper Receiver

The Obsidian Arms Forged Big Bore Upper Receiver is engineered to look as good as it performs. The enlarged ejection port will cycle the .450 Bushmaster, .458 SOCOM, and the 12.7x42mm in addition to all of the smaller cases such as .223, 300 Blackout, 6.5 Grendel, and 6.8 SPC.

  • This model has the forward assist port
  • Ejection port still allows use of standard dust cover
  • Will work with any standard AR-15 lower
  • Will work with any standard AR-15 barrel
  • Forged 7075 T6 Aluminum Alloy
  • Black hard coat anodized (MIL-A-8625 Type III Class 2)

Our Price: $125.00
Obsidian Arms Forged Slick Side Upper Receiver

The Obsidian Arms Forged Slick Side Upper Receiver is engineered to look as good as it performs. By removing the forward assist we have cut weight and removed the part that gets more people in to trouble than its worth. Like our Big Bore Upper Receiver these also feature an enlarged ejection port that will cycle the .450 Bushmaster, .458 SOCOM, and the 12.7x42mm in addition to all of the smaller cases such as .223, 300 Blackout, 6.5 Grendel, and 6.8 SPC.

  • No forward assist port
  • Ejection port still allows use of standard dust cover
  • Will work with any standard AR-15 lower
  • Will work with any standard AR-15 barrel
  • Forged 7075 T6 Aluminum Alloy
  • Black hard coat anodized (MIL-A-8625 Type III Class 2)

Our Price: $125.00
Obsidian Arms Billet Upper Receiver

The Obsidian Arms Billet Upper Receiver is engineered to look as good as it performs. Billet allows us to create a much more unique upper receiver that is stranger and can be cut with higher precision. Standard ejection port suited for cases such as .223, 300 Blackout, 6.5 Grendel, and 6.8 SPC.

  • This model has the forward assist port
  • Ejection port allows use of standard dust cover
  • Will work with any standard AR-15 lower
  • Will work with any standard AR-15 barrel
  • Billet 7075 T6 Aluminum Alloy
  • Black hard coat anodized (MIL-A-8625 Type III Class 2)
  • Available in vibrant anodized colors as unique as its shooter.

Our Price: $200.00
Obsidian Arms Billet Lower Receiver

The Obsidian Arms Billet Lower Receiver is engineered to look as good as it performs. Billet allows us to create a much more unique lower receiver that is stranger and can be cut with higher precision.

  • Integrated trigger guard for higher strength
  • Flared mag well for faster mag changes.
  • Will work with any standard AR-15 upper
  • Billet 7075 T6 Aluminum Alloy
  • Black hard coat anodized (MIL-A-8625 Type III Class 2)
  • Available in vibrant anodized colors as unique as its shooter
FFL Required, only shipped to FFL license holders.

Our Price: $200.00
Obsidian Arms Billet Upper / Lower Receiver Set

The Obsidian Arms Billet Upper and Lower Receiver set is engineered to look as good as it performs. Billeting vs. forging allows us to create a much more unique lower receiver in vibrant anodized colors as unique as its shooter. FFL Required, only shipped to FFL license holders.

Our Price: $400.00