Springfield Armory Echelon U-Notch 9mm Luger, Full-Size, 4.5 inch, Black Melonite, 17+1
This Springfield Armory Echelon U-Notch pairs a 4.5 inch hammer-forged, Melonite-treated barrel with a billet-machined steel slide and the U-notch rear/green dot front sight setup. Built around the serialized stainless-steel Central Operating Group for modularity, it features fully ambidextrous slide stop levers, a reversible push-button magazine release, and the VIS direct-mount optics interface. Made by HS Produkt in Croatia, this full-size, striker-fired pistol is cataloged as SKU/MPN EC9459B-U.
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 firearm is in great shape. Minor, superficial scratches and blemishes are present.
What’s Included
- 1x 17-round factory steel magazine with enlarged polymer base pad
- Two additional interchangeable backstraps with installation tool
- Factory literature/documentation
- VIS optics mounting accessories kit (screws/pins)
- VIS optic cover plate (screws missing)
- Springfield Armory soft zippered pistol pouch
- Springfield Armory factory cardboard box
The Echelon’s sighting system on this U-Notch configuration uses a U-notch rear paired with a high-visibility green dot front blade for quick alignment. The billet-machined steel slide wears a black Melonite finish and carries forward and rear serrations for confident manipulation.
Its modular foundation is the serialized stainless-steel Central Operating Group housed in a black polymer frame. The frame includes wraparound stippling, interchangeable backstraps, and a beavertail to fine-tune fit. A full-length 1913-style accessory rail supports light or laser attachment.
The striker-fired action uses a flat-faced trigger and a trigger safety. Controls are duty-focused: fully ambidextrous slide stop levers and a reversible push-button magazine release support left- and right-handed operation.
The Variable Interface System (VIS) direct-mount optics interface with pin bores is machined into the slide. Capacity is 17+1, and the factory magazine includes numbered witness holes to 17 for quick round checks.
Introduced in 2023 as Springfield Armory’s modular duty pistol, this example is manufactured by HS Produkt in Croatia. It is identified as MPN EC9459B-U, with the SKU confirmed by the matching case label.