The MDT Gen 2 .308 Polymer Magazine for MDT Chassis systems and many other M24 type chassis and bottoms has been updated to offer a 10 round capacity and a longer cartridge overall length. MDT Detachable box magazines are designed to fit the MDT TAC21 and LSS Chassis systems, as well as many other M24 type chassis and bottom metals. Manufactured from high quality Polymer and uses a tempered steel spring. MDT magazines are guaranteed to work in our TAC21, LSS, LSS-XL, HS3, ESS and ACC chassis systems. They do not work with the following inlets: Ruger American in 204/223/556/300AAC, Browning X-bolt, Winchester XPC and may require fitting in Winchester Model 70. Based on custo Mfg: Mdt