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.