Springfield Armory Echelon 4.5 9mm — Threaded 4.5 Inch Barrel, VIS Optics Cut, 22+1 Capacity, Black — Two 22-Round Magazines
The Springfield Armory Echelon 4.5 stands out with its modular Central Operating Group (COG) removable serialized chassis, factory VIS direct-mount optics cut, and a hammer-forged, Melonite-treated threaded barrel. This full-size, striker-fired 9mm includes two extended 22-round magazines and ships with a spare OEM threaded barrel with knurled thread protector. Built by HS Produkt in Croatia, it features a billet-machined slide, steel sights, and an integral five-slot 1913 Picatinny rail.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm has been maintained very well. Overall care and cleanliness are evident throughout.
What's Included
- 2x 22-round extended steel magazines with base extensions installed
- OEM HS Produkt threaded 9mm barrel (spare) with knurled thread protector
- Speed loader
- Springfield Armory soft zip case
This Echelon configuration is a full-size, striker-fired 9mm with a 4.5 inch hammer-forged, Melonite-treated threaded barrel. The slide is billet-machined with forward and rear cocking serrations and a front trench index cut, finished in black Melonite to match the black polymer frame.
The pistol employs the Modular Central Operating Group (COG), a removable serialized fire-control chassis that anchors the system. Controls include ambidextrous slide stop levers and a flat-faced trigger with a trigger safety. The receiver is stainless steel, and the frame uses aggressive texture with interchangeable backstraps for fit.
Factory steel iron sights consist of a single-dot front post and a square-notch rear blade. The slide includes Springfield's Variable Interface System (VIS) factory optics cut for direct optic mounting. An integral 1913 Picatinny accessory rail with five slots sits on the dust cover for light or laser attachment.
Capacity is 22+1 with the included extended magazines. Proof marks and origin reflect OEM manufacture by HS Produkt in Croatia, identified by HS PRODUKT, HR markings.




