Ok, I'm new here and need a little info please. I purchased a glock 27 recently and put less than 50 rounds thru it punching a little paper. It shoots pretty good. I've already added a pearce grip extender and a drop in 3 1/2 lb. trigger. I was told I could drop in a 9mm barrel and use a 9mm (model 26)magazine and it would function. Is this true as I already reload 9mm and it's a lot cheaper than setting up for .40 S&W. thanks, headcase