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Thread: which caliber?
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14 April 2009, 13:56 #1
if you are looking for a new upper, but want to use an AR-15 lower, try 6.5 Grendel or 6.8 SPC--I think they both it the mag well, but need new magazines vice needing an entirely new lower like .308 or above (save the Beowulf 50 cal) .
- Federalist22