The Springfield Armory® Echelon 9mm 20-Round Magazine is a genuine Springfield factory double-stack magazine, specifically designed for use with the all-new Echelon pistol. Featuring a sleek durable stainless steel tube with a proprietary blacked-out coating, this magazine offers exceptional strength and lasting wear resistance for dependable, potentially life-saving performance in virtually any environment. The high-tensile steel spring and polymer follower work together to ensure smooth feeding performance, while the extended polymer floor plate offers improved ergonomics and intuitive reloads in fast-action shooting drills. To top it off, numbered witness holes provide quick round counts at a glance.