So im totally a newbie and purchased my first semi-auto pistol (i have revolvers), that being a Glock 22 Gen 4. I plan to eventually install a 9mm barrel conversion kit into it. My question is regarding the operation of the slide. Is the slide locking mechanism supposed to engage automatically if rack it with an empty magazine inserted? Other than when you discharge a full magazine with live ammo (at the range), shouldnt you always have to manually lock the slide back? Hope my question makes sense. I know this sounds like a dumb question, but sometimes you just have to ask them! Thanx to anyone offering any advice!