Is there any reason one of the several .22 conversion kits like the Marvel or the Sig or the Kimber wouldn't work on my SR1911? I gave my son my SR22 and am looking at getting another .22. Just don't know if I want to get the conversion kit or go with something like the GSG 1911-22. I love the 1911 platform so I kind of want to stay with it. Can't afford to shoot .45's as much as I'd like so I thought the kit might be the best way to go. TIA for any help.