Andro Corp Ind. / ACI 10.5" 556 M4 Upper Receiver - BLK | A2 | M4 Hand Guard | Without BCG & CH
With a 10.5-inch barrel made of Chrome Moly Vanadium and a twist rate of 1-7, the 5.56 NATO AR-15 Upper from Andro Corp Industries offers dependable performance. It comes fitted with a sleek M-LOK hand guard, allowing for easy customization with your favorite accessories. Constructed from Mil-Spec 7075 T6 aluminum and featuring T-marks, the upper is also dry film lubricated to ward off corrosion. Its use of Mil-Spec components makes it a trustworthy choice.
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Barrel
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Specifications
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|---|---|
| Caliber | 5.56 |
| Length | 10.5" |
| Material | 4150 Chrome Moly Vanadium |
| Profile | M4 |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Carbine |
| Gas Block Journal | .750" |
| Dimpled? | No |
| Twist Rate | 1:8 |
| Muzzle Thread | 1/2x28 TPI |
| Weight | 20oz |
| Barrel Extension | M4 Feed Ramps |
| Target Crown | N/A |
