Springfield Armory Echelon 9mm Luger 4.5in OD Green Cerakote Pistol - 20+1 Rounds - The Echelon from Springfield Armory is a modular and adaptable handgun designed around a stainless steel chassis and optics mounting system. Features the COG, entirely self-contained and serialized allowing it to be easily moved between grip modules in seconds; optic mounting system; Variable Interface System (VIS) allows users to mount over 30 optics directly to the slide without the use of adapter plates; the slide features four distinct engagement surfaces; a trench cut forward of the action gives shooters a natural index location for press checks and charging the firearm and the back of the slide is flared for positive purchase while deep forward and rear serrations are carried through the corners for a firm grip from any angle. Gear Up 25 package includes Crimson Trace CT-1500 Red Dot Optic, 5 magazines and dual range bag. Features: Central Operating Group: The all-new Central Operating Group is self-contained and serialized, providing a robust housing for the patent pending operating system. OD Green Cerakote: Finished in Cerakote to exceed the most rigorous demands, ensuring your firearm stands strong when it matters most. Variable Interface System: By utilizing a set of movable pins, the Variable Interface System on the Echelon achieves a low, direct mount optics solution for improved sight picture and intuitive alignment.