Well, I think that term, possibly first coined by Jeff Cooper, was usually applied to tiny small caliber guns. Ones that some would say were only good for shooting mice. While I didn't agree with that term, I don't think anyone's claiming that about the new crop of tiny 9mm's. Well, other than those who still cling to their 80's gun magazine "education"....Sig can be found for $500 Bro. Get them both. I've become fond of these mouse guns as the old timers refer to them.