if your going to shoot a lot mark3 hands down no contest. cheap mags easy to find mags and massive aftermarket support. there is even a speed loader out there that actually works well for loading mark3 mags.
its the 10/22 of pistols you can work on every aspect of the gun yourself with nothing but some punches and screwdrivers.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent