In my opinion, people get too involved on size. Carry what you can shoot well.
I bought a small sized 9mm pistol for the ex-wife (pre-divorce). Fit her hands perfectly. Easily concealed, but due to the recoil and limp wrist effect, she'd get a stove pipe every time. Match the firearm to yourself based up functionality and comfort first. If you get a firearm based upon size, and it's too large or small for you to shoot accurately, does not fit your hands or has too much recoil, then all you really have in your hands is an expensive rock. If you can't hit the target, it's only a visual deterrent. So, in some cases, the lowly Beretta Model 21 in a .22 LR is a better choice than a G20 10mm. Shooting a round that hit's it's intended target is better than 17 rounds that have missed and possibly injured an innocent bystander.
Just my humble opinion.
Owl.
