The Springfield Armory Echelon is a full-size striker-fired 9mm pistol with a 4.5-inch barrel. It ships with an Aimpoint COA 3.5 MOA red dot optic installed, tritium front sight, and a Tactical Rack U-Dot rear sight. The package includes one 20-round and one 17-round magazine. 
 

Key Specifications 

• Brand: Springfield Armory 
• Model: Echelon 
• Caliber: 9mm Luger 
• Action: Semi-automatic, striker-fired 
• Barrel Length: 4.5 inches 
• Capacity: 17+1 / 20+1 
• Color/Finish: Black 
   

Detailed Features 

• Aimpoint COA 3.5 MOA red dot optic installed at the factory 
• Tritium front sight with Tactical Rack U-Dot rear sight 
• Modular frame design with full-length frame (4.5F) 
• Ships with one 20-round and one 17-round magazine 
• Optic-ready cut with COA optic pre-installed

Owners of the Echelon COA package consistently note that receiving the Aimpoint COA already mounted and zeroed saves a meaningful step out of the box. The full-size grip and 4.5-inch barrel draw approval from range shooters who want a stable platform for longer sessions.

Ergonomics get positive marks overall, though some shooters with smaller hands find the modular grip module worth swapping before committing to it. The U-Dot rear sight paired with the tritium front sight is considered practical for low-light, and the Tactical Rack feature on the rear sight gets occasional praise from those who run the optic with a round in battery.

The value calculation on the Echelon COA splits opinion. Buyers who compare it against buying the pistol and optic separately generally see the bundle as favorable. A minority feel the Aimpoint COA is entry-level and would prefer the frame credit toward a different optic, which the modular system does accommodate.