The Battle Arms Development WORKHORSE Complete Upper Receiver is a 556NATO caliber and 10.5 barrel designed specifically for AR-15s. This black anodized finish model features an M-Lok Handguard, a heavy-duty 4150 chrome-moly steel black nitride barrel, and includes a Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG for exceptional durability, reliability, and ease of cleaning.
Specs
| Model No. | BAD-WH-UR10-5B-Y-15 |
| Model | WORKHORSE |
| Manufacturer | Battle Arms Development |
| Color | Black |
| Caliber | 5.56 |
| Barrel Length | 10.5 |
