I had a buddy in the Army that bought a Dan Wesson Pistol Pac in 1977 or 78.
Very accurate revolver. Lots of nice goodies in the case (sort of looked like the old VHS recorder cases).
That pistol pac is the only one I've ever seen with my own eyes. Never saw another one in the gun stores or at gun shows.
I think CZ is making spare barrels for them now, as well as the tools/etc. for changing barrels. Early this year I may try to order a 4" barrel for my DW 44 magnum.