FN PS90 5.7x28mm Bullpup — Ring Sights Integrated 1x Optic, 16.04 in Barrel, Tan, 30+1
This FN PS90 stands out with its factory Ring Sights integrated 1x reflex optic, ambidextrous-friendly bottom ejection, and a 16.04-inch barrel in a compact bullpup layout. It features a tan polymer monocoque stock with dual thumbhole-style grips and includes a translucent 30-round top-mounted magazine. Belgian origin markings are present alongside FNH USA import stamps.
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: There is some mild wear present.
What’s Included
- Factory Ring Sights non-magnified 1x reflex optic integrated into tall sight housing
- One 30-round PS90 translucent polymer magazine
The PS90 uses a closed-bolt, straight blowback system chambered in 5.7x28mm, paired with a 16.04-inch steel barrel and a multi-slot muzzle device. The bullpup configuration keeps overall length compact while retaining full-length barrel performance.
True ambidextrous use is supported by bottom ejection and bilateral charging handles. The top-mounted translucent magazine includes witness marks to 30, and capacity is 30+1.
A factory Ring Sights 1x non-magnified reflex optic is integrated into the tall sight housing, providing a clean, fast sighting solution matched to the platform.
The tan polymer monocoque stock integrates the forearm and features thumbhole-style dual grips. Controls include a rotary safety, and the length of pull measures 13.5 inches. Markings observed include 'PS90 cal 5.7x28', with proof and import stamps reading Fabrique Nationale Herstal BELGIUM and FNH USA FREDERICKSBURG VA.