Quoted:
Anyone know of a shop near Akron that can install a KAC URX rail system? Really don't want to ship it out
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Why can't you do it yourself? If it's the same rail as in this video, it looks easy as hell.
I don't see any special tools needed other than possibly the "adapter wrench," but I don't see why you couldn't use a strap wrench or something similar like a pipe wrench with something covering the rail if you're worried about scratching it.
And you most certainly don't need the "custom cut vise jaw" or the "barrel extension tool." A simple bench vise with an upper vise block would be more than sufficient.
Video Link. Skip to about 4:30 for Install Directions
Take some pride man, and do it yourself. These guns are the easiest to build/modify. Don't pay someone to do it for you.