I recently turned 21 and am interested in purchasing a handgun. My only problem is my budget which is around $400. I'd like to get a decent quality gun and have considered buying a used one. The only criteria I'm looking to meet is a larger caliber than a .22 and not a revolver. I'm open to any suggestions. I have plenty of experience with guns and gun safety; I'm just not that knowledgeable with different models.