Springfield Armory Echelon 4.5F Comp Firstline 9mm, Optics-Ready VIS, Tritium U-Dot Sights, 20+1
The Echelon 4.5F Comp Firstline stands out with its integral single-port compensator, VIS direct-mount optics interface, and modular Central Operating Group chassis. This full-size, striker-fired 9mm pairs a hammer-forged, Melonite-finished 4.5 inch barrel with a black Melonite slide and a polymer frame for a durable, duty-focused build. It ships with three factory steel magazines and Firstline-branded packaging.
The VIS interface uses self-locking front pins to mount compatible footprints directly to the slide without plates, and a removable cover plate maintains a clean profile when no optic is installed. The front sight is positioned behind the compensator port to preserve the sight picture. Sights include a tritium/luminescent front and a Tactical Rack U-Dot rear.
Ergonomics are set up for control and fit, with aggressive grip stippling and interchangeable backstraps. A full-length MIL-STD-1913 accessory rail with five slots supports lights or other rail-mounted accessories. Safety is a straightforward trigger safety consistent with its striker-fired action.
Capacity is 20+1 with included extended magazines, and a 17-round flush-fit magazine is also provided. Markings note manufacture by HS Produkt in Croatia and import by Springfield Armory in Geneseo, IL. This configuration is identified by part number EC9459B-U-COMP-FL.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol shows minimal handling marks on the slide and frame. The bore presents a bright, clean appearance consistent with the noted condition. Photos provide additional views of these areas.
What’s Included
- 2x 20rd mags & 1x 17rd mag (factory steel; extended and flush-fit types)
- Owner's manual
- Zippered soft case
- Factory box (Firstline branded)
- Polymer magazine loader
- Two additional interchangeable backstraps
- VIS optics mounting accessories kit
- Driver handle with two steel bits
The barrel is hammer-forged steel with a Melonite finish and an integral single-port compensator, matched to a black Melonite slide that also incorporates the compensator port. The VIS optics-ready slide accepts multiple footprints directly via self-locking front pins, and ships with a removable cover plate installed.
The polymer frame features aggressive stippling and ships with additional backstraps to tailor grip size. A full-length MIL-STD-1913 rail with five slots is molded into the dust cover for accessory mounting.
Sight setup consists of a tritium/luminescent front and a Tactical Rack U-Dot rear (U-notch). The front sight is set behind the compensator port. Controls and operation are striker-fired, semi-automatic with a trigger safety.
Factory markings include "HS PRODUKT – MADE IN CROATIA" and "SI GENESEO, IL." This full-size Firstline series pistol carries a 20+1 capacity, with magazines and accessories as listed, and an MSRP of $749.00.