Got a bit of a question here, First time Glock and pistol buyer.... A fella locally has a G3 G17 for sale for what I think is a pretty reasonable price ($400). It's got Trijicon Night Sights and an extended magazine and slide release. The downside is that it's only got 2 mags and none of the paperwork or case Should I jump on it? When I check it out, is there anything I should look for? (aside from the obvious, is it beat to hell, visual inspection) Does anybody here CC a G17, and what have your experiences been like? Help a fella out!