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Old 11-24-2011, 22:36   #3
Senior Member
Join Date: May 2007
Posts: 1,761
I don't know of any. He should just get a Lage upper. It turns a bullet hose into a decent competition ready sub-machinegun.

There are uppers for MAC-10s and SWD M11/9s.

Last edited by mboylan; 11-24-2011 at 22:37..
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