MRMADNESS, The mag extension is not considered a 922 part. Just an ext of the original mag tube. You can replace the mag tube to make it 7 shot and that counts as 1 922 item. alsp, here is a link for you, Take your time in this site, this guy knows his crap honestly and he makes the parts and all his parts are stamped or lasered made in the USA,
Here ya go https://freedomfightertactical.com/collections/every-part-that-helps-with-922r-compliance
Hope this helps you solve the issues you are trying to correct
Happy Thanksgiving everyone
Tim
