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- Caliber:
- .223 Remington, 5.56x45mm NATO
- Overall Length:
- 16 in
- Barrel Length:
- 16 in
- Barrel Profile:
- M4
- Barrel Twist Rate:
- 1-9
- Muzzle Device:
- A1
- Finish:
- Anodized
- Color:
- Black
- Gun Model:
- AR-15, M4
- Barrel Material:
- 4140 Chrome Moly Vanadium
Code: SR4-UFH-ARBU404
MPN: ARBU404
UPC: 841348105138
ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.
Product Info for DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver
DS4 16" Barreled Upper. 5.56 Nato, 1.9 twist, M4 Feed Ramps, Forged upper![]()
Specifications for DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver:
| Manufacturer: | DoubleStar |
| Caliber: | 5.56x45mm NATO, .223 Remington |
| Overall Length: | 16 in |
| Barrel Length: | 16 in |
| Barrel Profile: | M4 |
| Barrel Twist Rate: | 1-9 |
| Muzzle Device: | A1 |
| Finish: | Anodized |
| Color: | Black |
| Gun Model: | M4, AR-15 |
| Fabric/Material: | 7075-T6 Aluminum |
| Gun Make: | AR Platform |
| Barrel Material: | 4140 Chrome Moly Vanadium |
| Magazine Included: | No |
Package Contents:
- DoubleStar DS-4 AR-15/M4 Flattop 16" Upper Receiver