My experience with AR15 site was positive in fact top notch. I enjoyed a long convo I had with a friendly customer support. I lost my $#*! when my package arrived in 3 days. IDK what that was about. I don't remember paying for extra fast shipping. Products are quality and when I say QUALITY I mean it. I really am not sure what else to say here but the fact that I 100% hands down recommend them.