The Chameleon includes interchangeable cylinders and easily removable and replaceable barrels, which allow the shooter to switch calibers in just a few minutes.
We shooters and collectors of vintage American military .45s need to pause for a moment and consider something. All military .45 Auto handguns semi-autos and revolvers are old and now valuable. Model 1911s are from 112 to 97 years old, and 1911A1s can be 97 to 78.
In those early years Linebaugh built custom five-shot .45s on both Ruger and Abilene/Seville frames. Because of the grip frame designs then available felt recoil was extremely heavy.