DPMS Lower or AR-10 mags which to keep?

ehall

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Full Member
Minuteman
Sep 12, 2005
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kcmo
I am just starting to build my first 308 AR. I bought a DPMS lower which was a good deal. Now I am working on a trade for AR-10 20 and 25rd. Gen II mags. If I get the trade done I am thinking of keeping the mags and selling the Lower. Any opinions on which will make the better build?
Thanks in advance