rd, it's actually very easy to convert. Just make sure yours has an index mark so that you can screw the barrel back in correctly. Mine did not, so I put one. Don't know if it's true for all but my barrel screws in nice and snug, but not overly tight, you might get by without a barrel vise. About a 30 minute job start to finish. Here endeth the epistle. Goatwhiskers the Elder