Springfield Armory Echelon 4.0C 9mm 4″ Gear Pac

The Springfield Armory Echelon 4.0C is a compact, optics-ready 9mm semi-automatic built on a black polymer frame with a 4.0" hammer-forged barrel. This Gear Pac configuration ships with a factory-installed Viridian RFX11 green-dot optic and a protective range bag. The design emphasizes compact carry ergonomics and direct-mount compatibility with modern red-dot sights.

Key Specifications

• Caliber is 9mm Luger for widely available centerfire ammunition compatibility.
• Barrel measures 4.0 inches with a cold hammer-forged steel, Melonite finish and a 1:10" twist.
• The action is Semi-Auto with a serialized Central Operating Group.
• Frame is a black polymer small grip module that accepts the Central Operating Group.
• The slide is an optics-ready billet machined Melonite finish with serrations for positive manipulation.
• Standard capacity is listed as a 10-round capacity consistent with a California-compliant configuration in the supplied materials.
• Factory-installed optic is a Viridian RFX11 green-dot with Instant-On technology.
• Sights are configured with a U-Dot tritium rear and white-dot front to complement the optic-ready slide.
• Overall length is documented as 7.25 inches in manufacturer materials.
• Rate of twist is specified as 1:10" for the barrel.

The Echelon 4.0C Gear Pac pairs a compact, carry-focused platform with an optics-first slide and factory accessory kit to support range use and everyday carry setups. Its optics-ready slide and user-focused sighting system make it straightforward to integrate a micro red dot while the polymer frame keeps handling familiar and practical for daily carry. The included Viridian RFX11 and protective bag provide immediate out-of-the-box utility for training and range time.