Originally Posted by Rick1967
I am suprised that you can swap between 9 and 40. I would have thought that the diference in case size would be a problem for the extractor. I would also wonder if the bolt face on the slide of a 9mm would be big enough for a 40 to fit into. Is this a non-issue then or is everybody just guessing?
Your right, can swap but only with a conversion kit, probably easier/cheaper to buy another firearm