I'm in between on which Armalite AR10 to keep. I have both A and B pattern rifles. B magazines might be more available under a ban which is why Armalite first developed their proprietary M14 mag. I have 8 magazines for each rifle. Prior to the recent events I was going to take my AR10T (pattern B) barrel and handgaurd and transfer them to the AR10A pattern gun then sell the B pattern assembled rifle. Thus leaving myself with a AR10T A pattern rifle which Armalite does not offer. Now I don't know what to do??? Any ideas?