Read those links I posted. Especially this one:
http://www.youtube.com/watch?v=kOJHzzauJYw&
Education is the key to not getting taken advantage of via gun parts. Since no one else has asked it, I will: Who sold you that rifle?
I'll read them for sure, and I appreciate you posting them. Hopefully I have time to do that at work today. Sorry, but I don't feel comfortable disclosing this guy's name on here until I've gotten the rest of my parts. He doesn't regularly build/sell guns except for himself and friends most of the time, so I don't think I'm putting any other potential suckers at risk, and if word got back to him that I've been bitching about and bad mouthing him he'll likely ignore me for another year +.
If it's someone you think you know, PM me and we'll chat there about it.