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The Rock River Arms X-1 .308/7.62X51mm Completed Upper was developed in order to be the best item for any person looking for a top quality selection..![]()
Formulated working with several of the most sturdy and long lasting materials available, these AR15 Upper Receivers through Rock River Arms will provide you with something that will give you years of dependability.
Rock River Arms has been developing high-quality products for a very long time, and the Rock River Arms X-1 .308/7.62X51mm Completed Upper is their very own approach to demonstrating how much they care.
At OpticsPlanet, we make it our responsibility to get the most suitable product for your requirements, and presenting the Rock River Arms X-1 .308/7.62X51mm Completed Upper is one thing that we are happy to offer.
| Manufacturer: | Rock River Arms |
| Caliber: | 7.62x51mm NATO, .308 Winchester |
| Overall Length: | 26 in |
| Barrel Length: | 18 in |
| Barrel Profile: | Heavy |
| Gas System Length: | Mid Length |
| Barrel Twist Rate: | 1-10 |
| Firearms Threads Per Inch: | 5/8x24 |
| Handguard Type: | Free-Float |
| Muzzle Device: | Brake |
| Finish: | Anadized |
| Gas Block Journal Size-Diameter: | .875 in |
| Handguard Length: | 17 in |
| Gun Rail: | Full Top Rail |
| Weight: | 7.17 lb |
| Condition: | New |
| Barrel Material: | 416R Stainless Steel |
| Bolt Carrier Group Included: | COM-SPEC |
| Magazine Included: | No |
| Mount Type: | M-LOK |