Engineered for superior performance, the Mission First Tactical 10EXD762x51-SDE magazine offers unmatched reliability for AR10/SR25 pattern rifles. With its durable polymer construction, it withstands rigorous use while maintaining optimal functionality. Specifically designed for SAAMI-spec 7.62x51/.308 Winchester ammunition, this magazine leverages advanced material technology to meet and exceed military standards of strength and durability. Next 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 Elevate your shooting experience with reliability you can trust.