Where do you guys live that you need to have someone "build" and A/R? There are a zillion quality A/R on the web that will shoot as good if not better than a custom job....
Wow... just spent 2 hours reading the entire post and you've all lived my life with my B-mag since last September but with a much happier ending to my saga than most of yours. In a nutshell..
Bought 1st B-mag in September had 2 days extractor point broke. shot 1 1/2" groups right out of box...