For a super small "drop in your pocket" size, get a NAA Mini-Mag. Great for when your wearing shorts and tshirt. Makes a good BUG. 22mag is viable but not best. My collection of carry guns runs from 22mag, .380, .38spl. 9mm, 45 Colt.
LEO, NRA member, Native Texan. Shooting and hunting for over 45 years!