The E-Lander Magazine AR-15 6.5 Grendel 4-Round is a heat-treated steel magazine with a durable body coating designed to be tough and resilient. Features include a heat-treated steel body, durable body coating, reinforced floor plate tags, a steel floor plate with integral locking plate, and fully-deburred feed lips for reliable feeding. Capacity is 4 rounds for AR-15 platform chambered in 6.5 Grendel.