I want a .22 cal handgun but am trying to figure the best way to get there. One way would be to convert one of our Glock 19's with an Advantage Arms conversion kit and the other would be to just purchase a S&W M&P .22. Between my wife and I, we have two G19's, both gen 4's and my carry gun is a G23 and sometimes a 9mm Shield. The convert side of my logic is I could practice with a gun the same size and feel as my carry gun. The buy new logic tells me that the M&P full size handgun, not the compact, is about the same size as a Glock 19 or 23, it would be made specific for its caliber and only about $60 more than a conversion. I suspect it also may be a bit more reliable than a conversion. Any thoughts? Has anybody converted their Glock to a .22 and if so what kind of results did you have?