These magazines are designed with a unique Double Stack to Single Feed (DSSF) transition design for reduced overall height compared to the industry standard.DETAILS: 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. SPECIFICATIONS: 3.055 Outside Length, 2.870 max cartridge overall length (COAL) with binder plate, 2.52 Rear Height.COMPATIBILITY: 308WIN, 6mm Creedmoor, 243WIN, 260 Rem, 6.5 Creedmoor, 7mm-08 Win, 308/7.62x51 NATO, 22 - 250 Rem (will work at a reduced capacity).BINDER PLATE DETAILS: The magazines with front binder plates are compatible with all rifles equipped with AICS-pattern bottom metal or chassis systems. The binder plate holds the cartridges back from the front of the magazines and guides them past the bottom of the feed ramp. The maximum cartridge overall length (COAL) that will fit in this magazine is 2.870. These are compatible with all AICS-pattern bottom metal and chassis systems, but most common actions such as Remington 700 and Savage 10/11 will require modifications to the receiver (i.e. notching out the bottom of the feed ramp) to prevent the bullet tips from catching on the bottom of the feed ramp (see photo below).