The Springfield Armory(R) Echelon 4.0C is a compact 9mm pistol with a 4 in barrel optics ready slide and 10 round magazine capacity. This OD Green configuration uses a Melonite finished barrel and serrated steel slide with a polymer frame and integrated Picatinny rail. It is built for personal protection and range use with Springfield Armory's Variable Interface System textured grip and compact carry focused dimensions.Key Features9mm Luger chambering with 4 in Melonite steel barrelSemi auto pistol with 10 round magazine capacityOptics ready serrated steel slideOD Green polymer frame with Picatinny rail and textured gripIncludes 2 10 round magazines and soft caseSpringfield 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.