And mag springs or new mags. Depending on just how soon he's to be 21 I understand you can send them to Glock for refurb at a reasonable price, but it probably doesn't need it.recoil spring and extractor spring are probably the only ones that may cause issues,, but to be honest if it was police gun it was probably not fired much, maybe 50-100rds a year for qualifying.
Agree. Best way to figure out functionality is go out and shoot the pistol. It's easy to replace any parts on the Glock pistol if needed. I would be looking for new magazines and ammo to go with the pistol.Honestly, I would load it and shoot it. If it worked well, I would be done with it.