Springfield Armory introduced the Echelon series of pistols in 2023. Like in the case of their other product lines, they have been constantly expanding the Echelon line releasing new configurations, colors and variants like the 4.0C compact pistol. At SHOT Show 2025, the company announced the   Flat Dark Earth (FDE) and   Olive Drab Green (ODG) color options of the Echelon 4.0C 9mm pistol.