The cool thing about a model 37 is you can hold the trigger and pump. It will fire with every pump. There is a name for that, I'm sure someone will chime in with it. My feeble mind cannot remember what it's called.
I have a model 37 Ithaca that my father purchased new from a hardware store in...
I have an older Beretta AL 390. It has easily over 20k rounds through it. Never had a malfunction and never replaced any parts whatsoever. Best gas semi ever produced IMO. Mine is a diamond Sporting edition, not a self defense gun.