Springfield Armory Echelon 9mm 4.50" 15rds, Flat Dark Earth

Good things come to those who wait and while the Echelon may not be the first polymer pistol to feature a modular design, night sights and optics mounting system, it might just be the best. Built around Springfield's patented Central Operating Group (COG), a serialized chassis that serves as the "skeleton" of the gun, the Echelon offers unmatched customization. You can easily switch between small and medium grip frames, turning the Echelon into a compact or subcompact pistol with optional slide/