I'm looking to buy an AR that I haven't been able to find locally or at the gun shows. There are a few on Gunbroker but I'm untrusting when it comes to things like this. All the sellers have A+ ratings with over 100 reviews. Am I being paranoid and should buy with confidence or is Gunbroker as sketchy as eBay? I don't care how good of a deal something is, I never trust eBay anymore.