Description
Ar Five Seven Center AR57 Ultra Light Tactical Upper Assembly is built for 5.7x28mm. It features a 12 in barrel with a 1:9 twist rate and a black Melonite finish. The upper is forged from 1 7075 T6 monobloc aluminum, with an 8620 steel alloy bolt carrier, buffer tube, and flashider finished in black Melonite treatment.
Key details
- 12 in barrel with 1:9 twist rate
- Black Melonite finish
- Forged 7075 T6 monobloc aluminum upper
- Includes 8620 steel alloy bolt carrier, buffer tube, and flashider
| Fits | AR57 |
|---|---|
| Part Type | Upper Assembly |
| Caliber | 5.7x28mm |
| Barrel Length | 12 in |
| Twist Rate | 1:9 |
| Finish | Black Melonite |
| Material | 1 7075 T6 monobloc aluminum |
