Springfield Armory(R) Echelon 4.0C is a compact semi-automatic pistol chambered in 9mm Luger. It features a 4 in hammer-forged steel barrel with Melonite finish an optics-ready serrated slide and a black polymer grip module with an accessory rail. This package includes 15-round and 18-round magazine capacities and features a U-Dot sight system for rapid sight acquisition.Key Features 4 in hammer-forged steel barrel with Melonite finish Semi-automatic operation with 15-round and 18-round detachable magazines Optics-ready serrated slide for compatible reflex sights U-Dot sight system for rapid sight acquisition Black polymer grip module with accessory railSpringfield Armory(R) builds modern firearms that blend proven designs with contemporary features for today's shooters. The brand is known for duty-capable handguns and performance-oriented platforms that support optics lights and high-round-count training. Springfield Armory focuses on practical reliability shooter-friendly ergonomics and consistent value across its lineup.