My old S&W K22 is really a PRE-K22 it seems. Might be 1941 model. Old and beat up. Jackson put the good cleaning on it and it runs like a champ. Had gotten a little waxy and greasy in there. Nothing worse than .22 ammo for gunk.
It had a nice little workout the other day when I took two women shooting. There isn't anyone who doesn't enjoy shooting this pistol so far. Its a gunbroker replacement for the one dad had.