The Fostech Origin 12 20-Round Drum Magazine uses a patented system of grade 8 fasteners and a large extremely reliable coil spring to handle the load put on it. The Origin drum is made from anodized aluminum which makes it extremely durable. One of the great things about this magazine is that it does not require you to rock it in place for lockup like many similar designs of today. There is absolutely ZERO milling or machining required for this drum magazine to work with the Origin 12 shotgun.
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