Springfield Echelon 4.5F Chosen by St. Louis County Police Department

Eric B
by Eric B

Springfield Armory has announced that the St. Louis County Police Department has adopted the Echelon 4.5F 9mm pistolĀ as its new duty sidearm. The Echelon series was developed as a modern, striker-fired platform with a focus on modularity, ergonomics and durability. At the core of the design is the patent-pending Central Operating Group, a self-contained stainless steel chassis that serves as the serialized component. This allows the system to be moved between different grip modules within seconds.

Officers can tailor the pistol to their hand size by selecting from interchangeable grip modules and three included backstraps, while additional small and large grip frames are available separately.

The pistol also incorporates the patent-pending Variable Interface System for direct-mounting optics. The system uses self-locking pins to secure supported optics footprints, more than 30 in total, while maintaining a consistent point of aim and point of impact.

ā€œSpringfield Armory has a strong commitment to supporting the law enforcement community,ā€ said Fred Mincks, Springfield Armory’s Law Enforcement Sales Manager. ā€œWe are proud to have been able to provide such a capable firearm to the St. Louis County Police Department to help them keep their community safe.ā€

According to department armorer P.O. Jason Dite, officers in transition training reported positive impressions of the pistol’s performance, ergonomics and slide features, and left-handed officers noted the advantage of the fully ambidextrous controls.

ā€œFor any department looking for a new weapon system, we can highly recommend the Springfield Armory Echelon series of pistols as a durable, highly configurable platform that can fulfill multiple roles,ā€ said Dite. ā€œWe look forward to continuing our partnership with Springfield Armory and the innovative Echelon models.ā€

To learn more about the Echelon 4.5F, please visit https://spr-ar.com/r/5608

Eric B
Eric B

Ex-Arctic Ranger. Competitive practical shooter and hunter with a European focus. Always ready to increase my collection of modern semi-automatics, optics, thermals and suppressors. TCCC Certified. Occasionaly seen in a 6x6 Bug Out Vehicle, always with a big smile.

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  • Kel138820975 Kel138820975 on Apr 18, 2026

    I'd be interested in knowing what firearm they are replacing and what the industry standards are in approaching law enforcement and their decision making when they do a change in their duty sidearms. Years ago, Smith and Wesson made some noticeable inroads with a lot of agencies with their M&P pistols. Of course, Glock remains the standard for the majority of departments in the USA.

  • DeathDealer DeathDealer on May 24, 2026

    Great pistol!

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