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Unfortunately, the following product is currently unavailable through Rainier Arms.
The Pistol-MUR is a rigid Mil-Spec flat-top upper custom made to fit Quarter Circle 10 carbines. The Pistol-MUR was developed to give the customer a Mil-Spec correct upper receiver with a thicker wall, making the MUR upper receiver a stronger platform. This more rigid upper receiver will increase accuracy and reliability, while extending the life of the interfacing components.
| Weight | .6 lbs |
|---|---|
| Dimensions | 7.657 x 2.121 x 1 in |
| SKU | QC-PRCU-S |
|---|---|
| Manufacturer | Quarter Circle 10 |






