N.V.S. Marked Japanese 30-Round “Split-Back” M1 Carbine Magazine. It has a Type V Floorplate labeled “Japan” and a last-round bolt hold-open follower. These N.V.S. marked magazines are rarer than others and known to be of high quality. This example is in good shape for its age with typical wear and marring from usage, storage, and handling. We have 2 in stock.