PolarStar UGS™ End Plate Assembly R01

This End Plate fits the "Original" UGS™ for M4-series rifles and includes the pivot screw for mounting PolarStar UGS™ Stock Rails. Use this part to convert G&P R3 series rifles to run UGS™ 2.000" HPA and Milspec stock rails — stick-on rails are no longer needed.

• Cross compatible with Type 1 or Type 2 UGS™
• Converts G&P R3 to use PolarStar Stock Rails
• Includes pivot screw
• Not compatible with HK417 UGS™