FN Herstal PS90 5.7x28mm — M1913 Top Rail, 16.04 in Barrel, Black, 50+1 Capacity
This FN Herstal PS90 is a 5.7x28mm semi-automatic bullpup rifle configured with the factory M1913 top rail receiver. It features a 16.04 in cold hammer-forged, chrome-lined barrel, bottom ejection, and a top-mounted translucent magazine. Belgian-made with clear FN markings, it comes in excellent condition with its original box, manual, and one 50-round factory magazine.
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: Very light indications of prior handling are present. The bore is clean and shiny.
What’s Included
- FN PS90 factory cardboard box
- FN Herstal PS90 Owner's Manual
- One factory FN PS90 translucent 50-round magazine
The PS90’s compact bullpup layout delivers a short overall length of approximately 26.3 in while maintaining a full 16.04 in barrel. Its bottom-ejection system and top-mounted translucent magazine define the platform’s distinctive configuration, with a left-side charging handle for operation.
The barrel is cold hammer-forged and chrome-lined with a 1:9 RH twist and a muzzle device, supporting the 5.7x28mm chambering. The action is a simple blowback design operating from a closed bolt.
This model uses a factory M1913 top rail receiver (non-Tri-Rail) paired with integral backup iron sights. The rail provides a stable mounting interface, while the built-in sights remain available as a backup.
The black polymer stock is an integral bullpup system with a thumbhole and foreguard, and the length of pull is 13.5 in. Unloaded weight is approximately 6.7 lb, and the stated maximum capacity is 50+1.
Country of origin is Belgium, with markings that read "Fabrique Nationale Herstal BELGIUM" and "FNH USA FREDERICKSBURG VA," consistent with factory production and import stamps.




