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Spear Arms

Spear Arms AR15 Upper Receiver—5.56 w/11.5" Barrel, 9.85" MLOK Handguard

Product Code : 4027-3410-018


The perfect upper for your lower, without all the tools required to build it. Our complete upper receivers are made from the highest quality USA produced components out there!

  • 11.5" 4150CMV Barrel - 1:7 twist - carbine gas system - stress relieved - nitride finish
  • 9.85" Standard free float MLOK handguard
  • Forged 7075-T6 upper receiver - hard coat anodized

Variants Available (Adders)

  • A2 Flash Hider
  • Pineapple Brake
  • Custom Brake
  • Billet charging handle
  • Ambi charging handle
  • Premium WLA Bolt Carrier Group—9310 Bolt—Billet Extractor—Black Nitride Finish - 100% USA made

Determined at checkout.