Magpul Industries PMAG GEN M3 AR-10/M110/SR25 Drum Rifle Magazine .308 Win/7.62x51mm NATO 50 Round Black 1 Pack Polymer MGMPI993BLK-50RD. The Magpul PMAG D-50 shares its DNA with the legendary Magpul PMAG GEN M3 which includes next-generation impact...