Description

The Battle Arms Development WORKHORSE 5.56 NATO upper receiver assembly delivers a no-frills, combat-ready configuration for AR-15 pattern lowers.

  • Caliber: 5.56 NATO / .223 Remington
  • Type: Complete Upper Assembly (No BCG/Charging Handle)
  • Compatible Lower: Mil-spec AR-15 pattern receivers
  • Barrel Length: 16 inches
  • Material: Forged aluminum receiver
  • Finish: Type III hard anodized black
  • Includes: Upper receiver, barrel, gas system, muzzle device, handguard
  • Installation: Requires BCG and charging handle (sold separately); attaches via standard takedown pins