Service includes standard AR-15/SR15 URX installation and upper assembly parts. Does not include gas block modification or other services such as flash hider installation that requires shims, or disassembly of an existing upper. Any additional work will be charged accordingly. Please send us an e-mail with a list of components that you will be using so we can check for any problems before we receive your parts.
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.