I'd send it to Innovative Arms, have them mill in some sights, then polish the chamber, feed ramp and barrel.
http://www.innovativearms.com/id18.html
It'll shoot like a dream, 100% reliable.
Last time I took mine out I grouped 100 rounds in a fist sized group at 10 yds, (not slow fire) far farther than I'd ever use it, but nice to know it is capable of this type performance with a 2.75" barrel.