Home / AR Rifles / Battle Arms Development / Battle Arms Workhorse AR-15 Pistol Barreled Upper Receiver 5.56x45mm NATO 9.5" Barrel
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Battle Arms Workhorse 10.5" 5.56 NATO Complete AR-15 Upper Receiver
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Barrel Extension: M4
Barrel Finish: Nitride
Barrel Length: 10.5in
Barrel Steel: 4150 Chrome-Moly Vanadium
Bolt Carrier Group Included: No
Chamber: 5.56 NATO
Charging Handle Included: No
Chrome Lining: None
Specifications
Caliber
Brand
Model
MPN
WH-UR-10.5-556
UPC
810033783784
MSRP
$556.95
Barrel Length
10.5"
Finish
Type III Hard Coat Anodized
Fits
AR-15
Color
Black
Description
The Battle Arms Development Workhorse 10.5in Upper is a complete AR-15 upper receiver for builders and owners who need a replacement or complementary upper. It is designed for the AR-15 platform and offers a matte black, Type III hard coat anodized finish over a 7075-T6 aluminum receiver.
The upper is fitted with a 10.5-inch barrel chambered in 5.56 NATO with a 1:7 twist rate, paired with an M4 barrel extension, a carbine-length gas system, and a .750-inch low-profile gas block. A 9.5-inch M-Lok free float rail and an A2 flash hider complete the barrel setup, and the upper includes an M4 feed ramp.
The upper is compatible with AR-15 lower receivers and is listed for 5.56x45mm NATO, .223 Remington, and .223 Wylde chamber use.
- Brand: Battle Arms Development
- Model: Workhorse 10.5in Upper
- Platform: AR-15
- Material: 7075-T6 Aluminum
- Finish: Type III Hard Coat Anodized, Matte Black
- Barrel Length: 10.5 in
- Chamber: 5.56 NATO, 1:7 twist
- Gas System: Carbine length, .750 in low-profile gas block
