Description
Barrel: Rosco Manufacturing 10.5in 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750″ diameter low-profile gas block, WORKHORSE 9.5in M-Lok Free Float Rail, and an A2 flash hider.
Upper: Forged 7075-T6 AR upper is hard coat anodized black for durability. Featuring M4 feed ramp cuts, these upper receivers are made in specialized factories.
This Upper Does Not Include BCG or Charging Handle
Specifications for Battle Arms Development Workhorse 10.5in 5.56 Nato Upper Receiver:
| Manufacturer: | Battle Arms Development |
| Caliber: | 5.56x45mm NATO |
| Overall Length: | 18.5 in |
| Barrel Length: | 10.5 in |
| Barrel Profile: | A2 |
| Gas System Length: | Carbine Length |
| Barrel Twist Rate: | 1-7 |
| Threads per Inch: | 1/2×28 |
| Handguard Type: | Free-Float |
| Muzzle Device: | A2 Flash Hider |
| Finish: | Nitride |
| Fabric/Material: | 4150 Chrome-Moly Vanadium Steel |
| Gas Block Journal Size-Diameter: | .750 in |
| Handguard Length: | 9.5 in |
| Gun Rail: | M-LOK |
| Bolt Carrier Group Included: | No |
| Charging Handle Included: | No |
| Magazine Included: | No |
Package Contents:
- Battle Arms Development Workhorse 10.5in 5.56 Nato Upper Receiver
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