The Springfield Armory Echelon COA is a full-size, striker-fired 9mm pistol built around a truly modular platform and delivered optic-ready with the Aimpoint™ COA red dot installed from the factory. Designed for duty, defense, and serious range use, the Echelon combines rugged reliability, modern ergonomics, and a high-capacity magazine in a streamlined, professional-grade handgun.