The 400 Legend Duramag SS delivers the only purpose built magazine for this caliber. With these Duramag SS mags getting 400 Legend specific rib geometry is crucial to reliable feeding and cartridge stack internally.
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ITEM# 154583
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$42.59
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ITEM# 120091
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$30.22
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ITEM# 154580
DuraMag 2065041206CPD CPD Duramag SS 20rd 6.5 Grendel/6mm ARC Fits AR-15 Black Stainless Steel
$41.22
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