AR-15 Upper Assemblies
AR-15 Upper Assemblies

AR-15 Upper Assemblies

AR-15 upper assemblies open up possibilities when building and customizing a rifle. Adjust and enhance the capabilities of your AR with varying upper receivers, barrels, gas systems, handguards, and more. You can change the caliber of your AR rifle, too. Keep your reliable rifle functioning well or upgrade performance by replacing and upgrading your AR-15 upper assembly parts.

Upper Assemblies

Sort by:
  • Items per page:
  • 30
  • 60
  • 90
  • In Stock Only
  • New Items Only
  • Categories
    .17 WSM(2)
    .22 LR Uppers(9)
    .223 Rem/5.56 NATO Uppers(106)
    .300 AAC Blackout Uppers(15)
    .450 Bushmaster Uppers(7)
    6.8 Remington SPC Uppers(1)
    7.62x39 Uppers(8)
    9mm Uppers(5)
    Other(34)
  • Brand
  • Number of Rounds
  • Pricing
  • Rating

    4 Stars and Up & Up (29)
    3 Stars and Up & Up (30)
    2 Stars and Up & Up (31)
    1 Star and Up & Up (32)