How short is it and is it choked? Although not really preferred, a short barrel in cylinder (no choke) works fine for skeet, better than a longer barreled IC, Longer barrels are preferred due to a better sighting plane and more consistent follow through but do very little, other than possibly velocity, to increase the performance of your load. Having said that, you should be able to find a barrel at most of the usual online haunts, gunsamerica, and others. The Super X was, at one time, a very sought after gun by skeet shooters, enjoy!
Do not trifle in the affairs of dragons, for thou art crunchy and taste good with ketchup.