These MDT AICS-style magazines are constructed from high strength steel, and are given Cerekote Elite finish on the interior and exterior for excellent durability, reduced friction, and resistance to corrosion. They feature a unique Double Stack to Single Feed (DSSF) transition design – this reduces the height when compared to the industry standard and makes magazine changes easier especially from the prone position. Other features include a front binder plate which holds the cartridges back from the front of the magazine and guides them past the bottom of the feed ramp. Compatible Cartridges:308/7.62x51 NATO6mm Creedmoor243WIN260 Rem6.5 Creedmoor7mm-08 Win22 - 250 Rem (will work at a reduced capacity) MDT 3-Pack SA .308 Cal 12rd Blk Metal Magazine w/Binderplate Bundle 102922-BLK-MDT-KIT-3X