Alexander ar15 diy 18" upper kit 6.5 grendel Other Features: Includes grendel upper receiver,gas block,gas tube & roll pins,charging handle,and thread protector.You assemble
Specifications:
| Rate Of Twist | 1:8" |
| Barrel Finish | Matte Black |
| Barrel Material | Steel |
| Barrel Length In Inches | 18.00 |
| Caliber | 6.5 Grendel |
| Ar-15 Accessory | Y |
| Dimension | 5.10 X 4.65 X 24.20 |
