I recommend Inception Designs. Nummech has been on my bad list for 6 months now. Communication has been my biggest issue. Even after following
Andy's recommendations of "emailing over and over again" I still cannot get the parts that I ordered and had service for. I feel as though he is not treating me or my parts with respect at the moment so I am steering clear of him to be honest with you.
Inception Designs will ship your parts and respond to emails immediately. Strangely enough, I just put in an order to ID today to get a
"Angel Hi Rise feedneck adapter (RAW)" I'm putting together an Automag RT classic and I did not like how low the hopper was with the sight rail.
My word of advice. If you use the sightrail, go for the Hi Rise Adapter. No sightrail, you could go for the "low rise" adapter.
Have a great weekend!