Great gun , I've got one in .40 and love it. Fairly easy to shoot well but with the trigger action you will have to concentrate a little more than say a single action .22 to get good hits. Best of luck. Everything about that pistol including removing the mag safety can be found at mp-pistol.com. Speed shooter speciaties sells the spring to take out the mag safety.
Enjoy; its been twenty five years since my first handgun but i still remember the thrill
Andy