Battle Arms Development WORKHORSE AR15 Upper Assembly - Black | 5.56 NATO | 10.5" Barrel | 9.5" M-LOK Handguard|W/O BCG & Charging Handle
**This Upper Does Not Include BCG or Charging Handle**
WORKHORSE® Upper 10.5in 5.56 NATO 1:7 9.5in M-LOK® - Without BCG or CH
**This Upper Does Not Include BCG or Charging Handle**
Specifications:
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Barrel Length: 10.5in
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Gas System: Carbine
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Barrel Profile: A2
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Barrel Steel: 4150 Chrome-Moly Vanadium
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Barrel Finish: Nitride
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Chrome Lining: None
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Muzzle Thread: 1/2-28
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Chamber: 5.56 NATO
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Twist Rate: 1:7
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Barrel Extension: M4
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Diameter at Gas Block: .750
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Gas Block Type: Low-profile
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Muzzle Device: A2 Flash Hider
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Receiver Material: Forged 7075 T6
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Receiver Type: M4
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Handguard Type: WORKHORSE® 9.5in M-Lok® Free Float Rail
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Overall Length: 18.5in
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.
| SKU | WH-UR-10.5-556 |
|---|---|
| UPC | 810033783784 |
| MPN | WH-UR-10.5-556 |
| Manufacturer | Battle Arms Development |
| Model | WORKHORSE |
| Caliber | 5.56 NATO |
| Condition | New |
| Material | Assorted |
| Fits | AR-15 |
| Upper Type | Partial |
| Operating System | Gas |
| Barrel Length | 10.5" |
| Twist Rate | 1:7" |
| Barrel Type | 4150 Chrome-Moly Vanadium |
| Barrel Thread Pitch | 1/2x28 |
| Attachment Type | M-LOK |
| Forward Assist | Yes |