The Springfield Armory Echelon 4.0FC is a striker-fired semi-automatic pistol chambered in 9mm with a 4-inch barrel. It ships with an Aimpoint COA 3.5 MOA red dot already mounted, plus tritium night sights and a tactical rack U-dot rear. Magazines included cover 15-round and 18-round capacities. 
 

Key Specifications 

• Brand: Springfield Armory 
• Model: Echelon 4.0FC 
• Caliber: 9mm 
• Action: Semi-Automatic (Striker-Fired) 
• Capacity: 18+1 rounds (15-round magazine also included) 
• Barrel Length: 4 inches 
• Color/Finish: Black 
   

Detailed Features 

• Includes Aimpoint COA 3.5 MOA red dot optic 
• Optics-ready slide cut 
• Tritium night sight and tactical rack U-dot rear sight 
• Ships with both 15-round and 18-round magazines

Owners of the Echelon 4.0FC with the Aimpoint COA package consistently cite the bundled optic as the primary reason for choosing this configuration over buying slide and optic separately. The Aimpoint COA is regarded as a quality inclusion rather than a throw-in.

The Echelon platform's ergonomics are generally well-received; the grip geometry and texture draw favorable comparisons to other full-size striker pistols in this segment. Trigger feel is a mixed point, with some owners finding the factory pull clean and others preferring a lighter reset after break-in.

The 4-inch barrel on the 4.0FC frame balances manageability with sight radius, and most owners are satisfied with the accuracy potential at typical defensive distances. A recurring note is that the tritium night sights pair well with the red dot for backup iron sight use, though zeroing both to the same point of impact requires confirmation at the range.