I know the Springfield hellcat, upon launch, boasted a ten thousand round torture test. Impressive for something so small- small clearances etc. It is a bit large for a pocket, though it could be done. I know the Beretta tomcat is not made to be shot much. It is a more reasonable pocket sized gun. The NAA minis can break mainsprings with heavy shooting. The Beretta 21a can shoot itself loose over time, "wear out" if you will. I've heard many anecdotal cases of the Ruger small autos not holding up, the lc/ec/max 9s. I know I am not a fan of the lcp style take down system. My own 2008 lcp didn't seem to be holding up all that well, I benched it as a carry lots/ shoot little. By all accounts the airweight revolvers fall under that same heading. I am not sure about lcrs. They may last longer. I remember the sig 238/938 noting in the manual the need for frequent recoil spring changes. After trying that platform, they have their merits. Excellent accuracy, reliability was good for me. Single action pocket carry did not end up working for me( queue the gasp as I found one day my holsters cocked and locked 938 had somehow swiped the safety off in my pocket...). Is it safe to say, for a truly robust pocket gun the Glock 380 would be best? I've never owned or shot one, but I've looked at them. I think they would fit in a pocket. They take down like big boy guns, and seemed to be made quite stout. I don't see one falling apart in an intense pistol course and regular practice. What do you feel is the best pocket gun as far as still being pocket sized but able to handle regular training? I was thinking the Glock 380 for tiny pistols and the Smith m60 for 38/357. The all stainless construction should hold up well to regular pressure 38s.