Precision CNC Machined for billet 7075-T6 Aluminum, the EMMR (Enhanced Modular Magazine Release) features, unique, patent-pending three sided dovetail finger pad attachment mechanism that allows for maximum strength, an almost uninterrupted finger pad face for maximum design aesthetics, lightweight and low profile design. The interchangeable finger pads offer excellent ergonomic feel and ease of operation without shifting grip position. If you are looking for maximum flexibility, robust design, and unparalleled design aesthetics, the EMMR is the ultimate extended magazine release for you.