MAC-10s were only in production for civilians for about 16 years before Reagan signed that atrocity of a gun bill. I also doubt they’re available for under a thousand.
Nope $425 my FRiend..... figured you may want a heads up...
http://gunbroker.com/Auction/ViewItem.asp?Item=126969813
NO THIS IS NOT MY AUCTION, NOR AM I AFFILIATED WITH IT.