I think the CDPII family and other kimber .45s use an aluminum frame too. You should really ask this question on 1911-forum.com in the kimber section. But to be safe you can do as someone suggested and buy a .45 model and get a .22 conversion.Trigun said:I don't think so. I think the .45 flame was a steel flame and the rimfire has a aluminum flame.
Trigun



























