Don't forget it will need to be modified for semi auto only function. Whatever and who ever figures that out will need to send it to the BATFE for approval. Any 80% receivers will need to be sent also.
AFAIK the MK48 is still in use, good luck finding parts kits, i'm not sure if 922r will come into play. They are made here but in Belgium as well, so the ATF could say it's foriegn made and require 10 or less foriegn made parts.
There are 3 kinds of people in this world.
The wise, learn from the mistakes of others.
The smart, learn from their own mistakes.
The others, well......they just never learn.
"Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it, almighty God! I know not what course others may take; but as for me, Give Me Liberty, Or Give Me Death!"