Core component

AR-15 Upper Receivers by Brand

Stripped uppers, assembled uppers and complete uppers. Pick a brand to compare construction, forward-assist options and handguard fitment.

4 brands, 9 models listed. Checked 2026-08-01

• Aero Precision

  mid

  The M4E1 upper integrates the handguard mounting surface into the receiver, removing the separate barrel nut and keeping the top rail continuous.

  3 models · Lakewood, Washington

• Bravo Company Manufacturing

  mid to premium

  Mil-spec forged uppers with M4 feed ramps and properly staked hardware on the assembled versions.

  3 models · Hartland, Wisconsin

• Lewis Machine & Tool

  premium

  The MLC monolithic upper puts receiver and rail in one piece of aluminium, so the optic and the barrel never move relative to each other.

  2 models · Milan, Illinois

• Radian Weapons

  premium

  Billet uppers matched to the AX556 lower, with an integrated ejection port cover.

  1 model · Redmond, Oregon