Mdt Sporting Goods Inc 103133BLK AICS Magazine 3rd 6.5 PRC/300 WSM Short Action Magnum Black SteelThese magazines are designed with a unique Double Stack to Single Feed (DSSF) transition design for reduced overall height compared to the industry standard. MDT AICS pattern metal magazines are manufactured from high strength steel, nitrided, and finished inside and outside with Cerakote Elite for ultimate durability, corrosion resistance, and friction reduction. COMPATIBILITY: 6. 5 PRC, 270 WSM, 7 RSAUM, 300 WSM. The magazines without front binder