Thanks, I was thinking the barrel swap would be the easiest and cheapest but then I would have to get set up for reloading .40S&W/10mm. I currently do own a glock 40 that use when I'm out hunting but I don't really shoot it often. I can get a top end from fusion for under $700 to convert to 9mm. I guess my question is if paying the money up front for a new top end in 9mm be more cost effective in the long run since I already have all the brass/dies and other reloading components. Or should I just swap barrels. Thanks again