The Springfield Armory Echelon 4.0C Comp Gear Pac adds an integrated single-port compensator to Springfield's compact Echelon pistol, noticeably reducing muzzle rise during rapid fire while retaining a 4-inch overall barrel length. The 9mm Luger pistol is built on the Central Operating Group (COG) serialized fire control chassis with Variable Interface System optic mounting.The package includes a factory-installed Viridian RFX11 green dot optic, four 10-round magazines, U-Dot fixed iron sights, and a soft case. The billet-machined Melonite-finished slide is cut to run with or without the optic, and the Adaptive Grip Texture polymer frame gives positive control under recoil. The Echelon 4.0C Comp is purpose-built for fast follow-up shots during home defense, range practice, and concealed carry in 10-round states.This firearm must be transferred through a licensed FFL dealer.