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8/8/2008 12:33:32 PM EDT
I had an offer on a .40S&W upper. I really don't know anything about these .40's! how do they compare to the 9mm's? are they able to take the 9mm magwell adaptors and converted 9mm UZI mags/Colt mags?????

see, the guy said yes, but I wanted to ask the experts here before I did anything stupid...

thanks guys!!
8/8/2008 3:19:48 PM EDT
[#1]
The 9mm mags can be made to run the 40SW. You just need to open the feed lips to fit the 40.
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