Designed for superior reliability in any environment, the Duramag® AR-15 6.5 Grendel 26-Round Stainless Steel Magazine features a robotically welded 410 stainless steel body with a proprietary Teflon T-360™ finish for lasting corrosion resistance. Plus, the EverFlex™ anti-fatigue steel spring and the Advanced Geometry Follower™ pair together to deliver smooth, snag-free feeding performance. Better yet, this magazine is crack-, swell-, and crush-proof for superior durability.