CP came out with a 9mm mag block for $80 i think.
BCM custom 9mm builds are in stock!
http://www.gandrtactical.com/cgi-bin...on&key=9MM-BCM
C4
So, since these uppers come with a RRA BCG, it doesn't need a 9mm hammer? Basically you would just need a RRA mag block, and one of these uppers and you would be in business?
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