Service includes removal of a URX rail from an SR-15 or AR-15 upper receiver and also installation of a different length URX. This service is not for installation of URX 4 handguards on older guns with pressed on gas blocks. Please contact us to discuss your build.
We have been installing the Knight's Armament URX's since they were first released. We use custom made tools that allow for proper torquing of the barrel nut and do not mar the parts like the standard tools can. We guarantee a perfect alignment with the upper receiver and have never had a problem with our installation.