The Battle Arms Development WORKHORSE is an Upper Receiver Assembly designed for 223 Remington/556NATO calibers, featuring a 10.5-inch barrel with a carbine-length gas system. Wrapped in a black anodized finish, it comes with an A2 flash hider and a 9.5 M-LOK free float handguard, though it does not include a bolt carrier group or charging handle.
Specs
| Model No. | BAD-WH-UR-105-556 |
| Model | WORKHORSE |
| Manufacturer | Battle Arms Development |
| Color | Black |
| Caliber | 223 Remington |
| Barrel Length | 10.5 |
