I have one (one sold) new 10 round 308 mags with binder plates. I’m selling it with one 2 round extender. Please note that the extender requires a different (stronger $15) spring to use in the 10 round mags. Can be used in other mags without a different spring. The price per mag including one extender is $48 shipped to the lower 48. One sold, one left.
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