Description
Andro Corp Ind. / ACI 5.5″ 9MM Upper Receiver – BLK | A2 | 4″ M-LOK | Without BCG & CH
With a 5.5-inch barrel made of Chrome Moly Vanadium and a twist rate of 1-10, the 9MM AR 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.
| Barrel | Specifications |
|---|---|
| Caliber | 9MM |
| Length | 5.5″ |
| Material | 4150 Chrome Moly Vanadium |
| Profile | Medium |
| Finish | QPQ Corrosion Resistant |
| Dimpled? | No |
| Twist Rate | 1:10 |
| Muzzle Thread | 1/2×28 TPI |
| Barrel Extension | Beveled Feed Ramps |
| Target Crown | 11 Degree |
