For sale is a very good condition Marvel Precision Unit 1 22 Long rifle conversion for a 1911.  This unit features a 5.25 inch threaded 1/2x28 fixed barrel and adjustable sights.  The front sight has a white dot.  It is a lock back unit and comes with three steel 10 round magazines.  Group sizes for this unit are .703 at 50 yards.  Comes with the box test target and slide release.