The APG is legit, and you won't keep a membership if you don't support your customers properly. I know one big name no longer a member - some say he was kicked out; he claims to have resigned; he reportedly stated that no org would dictate his customer support policies to him. I don't know the real story, but it appears the org operates on a higher plane than "pay your due and we tell the world how good you are".
People in the DPRM will take a hit as guns come in from all over the country to Derr Precision. This, and his monthly column in American Handgunner, pushes him to the top of hill.