I EDC a 23. Excellent size/capacity. The 17/22/31 are all excatly the same except caliber. The 19/23/32 are all the same excpet caliber. 9mm, 40, 357 respectively. The 19/23 platform is an excellent choice for CCW. I love mine. With proper clothing /holster/belt and if you are not super tiny/skinny a 22 can be done. Overall though I think the 19/23 would be a much better choice. and you can always get a few extra 17/22 mags for higher capacity on reloads.