^ you mean the revolver? Dan Wessons have interchangeable barrels and shrouds - so my two DW revolvers can use many different sized barrels. I have a 10" barrel/shroud, two 8" barrels/shrouds, two 6" barrels/shrouds, and now one 4.2" barrel/shroud. The original barrel is prohibited, as it was 101mm. This custom 106mm barrel works with the old shroud, but instead of being flush, I needed to have a bushing made to go into the shroud and then the barrel nut is now on top of the shroud.
