Springfield Armory Echelon 4.5F 9mm Luger 4.5in Olive Drab Green Cerakote Pistol - 15+1 Rounds - The Echelon 4.5F boasts Springfield's advanced optics-ready slide, compatible with a range of red dot sights without the need for adapter plates. Its billet-machined steel slide is finished in Olive Drab Green Cerakote for enhanced corrosion resistance and aesthetic appeal. The 4.5-inch barrel is hammer forged with a Melonite treatment and a 1: 10 twist rate, delivering excellent accuracy and durability. The sight system includes a tritium/luminescent front sight paired with a tactical rack U-Dot rear, offering visibility in both bright and low-light conditions. A modular internal chassis system allows the serialized fire control group to be swapped between grip modules, offering true customization. With two 15-round magazines included, the Echelon is a complete out-of-the-box solution for tactical shooters and professionals alike. 1:10in Twist Hammer Forged Steel Barrel Billet Machined Slide Optics Ready Tritium/Luminescent Front, Tactical Rack U-Dot Rear Sights Captive Recoil System Medium Grip Module Modular Chassis System