Depends on the holster you carry, too. All I have at the moment is my Sig SP2022. I'd say it's a medium size handgun, though I suppose an argument could be made for full-size. However, with my Crossbreed IWB holster, even if all I have on is a t-shirt and jeans it won't necessary print at the 4 o'clock position...and I've got some extra weight on my sides. I have to wear a black t-shirt to help conceal any accidental printing, but as long as I'm not trying to do calisthenics or anything other than basic walking/sitting/crouching, it serves its purpose. That said, I'm currently saving up for a S&W Shield 9mm. I already have a 9mm, already am used to semi-autos, the Shield is very compact and has stellar reviews across the board. I don't have anything against revolvers, but since I'm already committed to semi-autos and the 9mm cartridge I think I'll stick with what I know. Once I get it, I think I'll have both IWB and ankle holsters for it.