Complete Upper Receivers



Upgrade your existing gas impingement AR with an Adcor Defense complete upper receiver system with its unique gas piston technology; forward placed, reversible/ambidextrous charging handle; and innovative, key locked highly rigid rail system.

  • Precision manufactured in the U.S.A.
  • Complete upper receivers attach easily to your lower receiver

  • Available with or without the forward charging handle
  • Available in barrel lengths of 10.5″, 14.5″, 16.1″, and 18″.


Where to Buy