Shop › PROMAG SIG P365 9MM 50RD DRM BK POLY PROMAG SIG P365 9MM 50RD DRM BK POLY $129.99 ProMag Industries Drum Magazine, 9MM, 50 Rounds, Fits Sig P365, Polymer, Black DRM-A32 Quantity: Add To Cart Added! ProMag Industries Drum Magazine, 9MM, 50 Rounds, Fits Sig P365, Polymer, Black DRM-A32