The Springfield Armory Echelon with 4.5-inch barrel extends the standard platform for enhanced velocity and sight radius while retaining the full-size grip and 20-round capacity. The VIS grip module system, CMC operating system, and cross-slot optic interface are identical to the 4-inch model. The 4.5-inch variant positions the Echelon against full-size duty pistols like the SIG P320 Full Size and Glock 17. Type: Pistol Action: Striker-Fired Caliber: 9mm Capacity: 20 Year introduced: 2023, USA Weight: 23 oz Overall length: 8" Status: Active Intended use: duty, competition