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 a black polymer grip module and an optics-ready slide with Springfield Armory's Variable Interface System. This striker-fired pistol has an 18-round magazine capacity and combines a compact configuration with an integrated accessory rail and adaptable optics mounting system.Key Features4 in hammer-forged steel barrel chambered in 9mm LugerSemi-automatic striker-fired operation with 18-round magazine capacityBlack polymer grip module with integrated accessory railOptics-ready slide with Variable Interface SystemCompact Echelon 4.0C configuration for versatile handlingSpringfield 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.