URX Barrel Nut

URX Barrel Nut, 11-Notch P/N:20496
Replacement 11-notch barrel nut for use with SR-15 URX rail systems. Requires a URX Barrel Nut for installation (sold separately). Recommended installation torque spec is 45-55 ft-lbs. Aluminum construction.  
 
Compatible with the Following Rail Systems:
URX II
URX III
URX 3.1
NOTE: Not for use with any SR-25 URX rail system.