Besides what fits your hand the best what do you look for when buying your carry gun? For me it more of the availability of mags, ammo, and parts. For example if god forbid something crazy happened and we did have a SHTF scenario I'd like to know that I could pick up most firearms and be able to use the mags or ammo. For example my 2 main carry guns are the glock 19 and 23 the 23 is my favorite in the sense that Leo carry g22s so I could there ammo/ mags. Now don't get me wrong I hope a situation like this never occurs but who knows Russians maybe dropping out of the skies sooner than later.