Springfield Armory Echelon 4.0C Gear Pac 9mm Luger 4in Black Melonite Pistol - 10+1 Rounds - CA Compliant - Engineered for carry, the California Compliant Echelon 4.0C preserves the core attributes of the full-size model in a shorter, more concealable package with a 4-inch barrel and compact frame. Its Variable Interface System provides direct-mount compatibility with today's top red-dot sights, paired with tritium U-Dot iron sights for rapid target acquisition. The serialized Central Operating Group is housed in a compact frame with a magazine disconnect configured for a 10-round capacity. A loaded chamber indicator allows confirmation of a chambered round. Compact Dimension: Shortened at the frame and muzzle, the Echelon 4.0C boasts full-size features in a concealable package. Central Operating Group: The Central Operating Group is self-contained and serialized, providing a robust housing for the patent pending system. Slide: Billet Machined, Melonite Finish, Optics Ready, Loaded Chamber Indicator Frame: Black Polymer, Small Grip Module, Magazine Disconnect Sights: Tritium / Luminescent Front, Tactical Rack U-Dot Rear Barrel: 1:10in Twist, 4in Hammer Forged Steel Gear Pac Includes: Four magazines Viridian RFX-11 Green Dot Optic Pistol bag