Knight’s Armament URX Barrel Nut
KAC PN 20496
Replacement 11-notch barrel nut for use with KAC URX rail systems on SR-15/AR-15 platforms. Requires a URX barrel nut wrench for installation (sold separately). Recommended installation torque spec is 45-55 ft-lbs. Aluminum construction.
Compatible with the Following Rail Systems
Note: Not for use with any SR-25 URX rail system