Springfield Armory Docter Echelon Variable Interface Plate Features The Springfield Armory Echelon Variable Interface Plate is built from steel giving it the strength needed to hold an optic rigidly in place through repeated recoil cycles. A corrosion-resistant nitride coating protects the plate from wear and environmental exposure helping it maintain a reliable fit over time. This particular plate is cut for the Docter footprint opening up optic compatibility beyond what ships standard with the Echelon pistol. Because the Echelon uses a variable interface system owners can swap plates to match whichever optic footprint they want to run. Adding Docter footprint compatibility gives Echelon owners access to a widely available family of micro red dot sights that use that mounting pattern. The plate installs into the Echelon s factory interface system without requiring any slide milling or permanent modification to the pistol. Springfield Armory designed the Echelon s modular optic system specifically so that owners could adapt the pistol to their preferred red dot as trends and personal preference change. For Echelon owners who already own or want to run a Docter-pattern optic this interface plate is a direct factory-backed solution. Springfield Armory Docter Echelon Variable Interface Plate Specifications Manufacturer: Springfield Armory Model: Echelon Variable Interface Plate Material: Steel Finish: Nitride Optic Footprint: Docter Compatible Hosts: Springfield Armory Echelon Available At: GrabAGun