I'm still kind of new with glock pistols. I only own a gen4 G21 and I like it. I just want some input if you all know about the gen2 G27. Is it as good as the new ones and if it was a used/holstered sidearm would you guys buy it? I'm asking because I'm getting one in a few days and want some input on them. The slide is quite worn from being holstered but still good looking. I actually kinda like it looking like that cuz it says I actually use it. Even though I didn't. Are they as reliable and last just as long as the gen 3/4. Just don't want to have issues since its so old. But some ppl told me they would prefer a gen2 over the 3/4.