I have a Mk II Competition model that I have upgraded with Volquartsen lockwork, Herrett grips, a Volquartsen compensator, and a red dot. I use it for Bullseye competition, and it works great. I love it. You can get anything for them, and they just keep working. I also have a 22/45 that's accurate and fun. I may get one of those little Walthers one of these days, but the next .22 I get will be a little Taurus Stainless 9 shot 4".