Springfield Armory(R) Echelon 4.0C is a compact 9mm Luger Semi-Auto pistol with a 4 in. hammer forged steel Melonite barrel and Black finish. It features a billet machined optic-ready Melonite slide Black polymer small grip module with Picatinny rail aggressive slide serrations and fully ambidextrous controls. The pistol includes a tritium/luminescent front sight Tactical Rack U-Dot rear sight one 15 round magazine and one 18 round magazine.Key Features9mm Luger chambering with 18+1 maximum capacity.4 in. hammer forged steel barrel with Melonite finish and 1:10 twist.Billet machined Melonite optic-ready slide with Variable Interface System.Black polymer compact frame with Picatinny rail and textured grip surfaces.Serialized Central Operating Group housed in the compact grip module.Tritium/luminescent front sight with Tactical Rack U-Dot rear sight.Includes one 15 round flush magazine and one 18 round extended magazine.Springfield 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.