I'll second Acculite. Louis there set me up with a matched set of 6", 10" and 16" for my convertible "Charger MWS." It was built on a stripped Charger Takedown receiver, set up so it can go from pistol to rifle at will so long as I make sure the stock is off (and I set up a 1913-mount sling-socket to block that accessory rail) before either short barrel goes on.