I think it was ahead of its time. You here of switch barrel guns alot but very seldom a handgun. I had a HK one time that had 4 different barrels but thats about it. I own 2 of the B&B conversions, one I had made new and one I bought used. As a matter of fact it is the ONLY one I've ever seen for sale. I keep one gun set up as Beauty and the other as Beast, but have the second barrel for each. Both of mine are 44 but it was offered in 45 also. I love mine. The one set up as the Beauty is the most accurate revolver other than a FA that I've ever owned.