Whats in the Box Springfield Echelon 4.0C 9mm Semi-Auto Pistol (2) 15-Round Magazines (1) Aimpoint COA Red-Dot Sight Range Bag Cable Lock Owners Manual Engineered for carry, the Echelon 4.0C retains the key features of the full-size model, with a shorter 4-inch barrel and compact frame, offering a 15-round flush capacity and 18 rounds with the extended magazine. Factory equipped with the Aimpoint A-CUT paired with the COA closed-emitter red dot sight, this integrated system mounts the optic directly to the slide without intermediary plates, reducing tolerance stacking while delivering a lower, more secure interface for enhanced durability and consistent zero retention. Firearm Features Aimpoint COA Red Dot This Echelon is factory equipped with the Aimpoint A-CUT, providing a direct mounting interface for the included COA red dot sight. Central Operating Group The Central Operating Group is self-contained and serialized, providing a robust housing for the patent pending operating system. (2) Magazines Included The 4.0C ships with a 15-round flush magazine and 18-round extended magazine. Firearm Specifications Manufacturer: Springfield Model: Echelon 4.0C Caliber: 9mm Barrel Length: 4" Twist Rate: 1:10" Finish: Black Magazine Capacity: 15 Rounds