The Mission First Tactical EXD Magazine is designed for the AR10A/SR25/M110 pattern rifles. Optimized for use with SAAMI-spec 7.62x51/.308 Winchester ammunition. Utilizing advanced material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed demanding military performance specs. FeaturesNext generation long glass fiber polymer.Enhanced strength & durability.Ribbed front and rear gripping surface.Tool-less disassembly with double floor plate safety release tabs.Long-life stainless steel spring Four-way anti-tilt self-lubricating follower.Flared floor plate. Oversized bolt catch. Paint pen dot matrix