The FN PS90 is chambered for the 5.7x28mm cartridge and is built around a compact, ambidextrous bullpup layout optimized for controlled handling and sustained magazine capacity. It uses closed-bolt blowback operation and ships with a high-capacity 50-round translucent magazine and MIL-STD-1913 accessory rail for optics and accessories. Controls and features are designed for true ambidextrous use, including dual magazine latches, ambidextrous safety, and thumbhole stock ergonomics.
Key Specifications
- The rifle is chambered in 5.7x28mm.
- The action uses closed-bolt blowback operation for consistent firing behavior.
- The magazine capacity is 50 rounds and ships with one 50-round translucent polymer magazine.
- The listed weight is approximately 6.28 lb.
- The overall length is listed as 26 inches.
- The stock is a synthetic thumbhole bullpup design finished in matte black.
- The upper receiver and barrel support are constructed from aluminum/alloy.
- The muzzle features an integral ported muzzle brake to mitigate felt impulse.
- The top of the receiver includes a MIL-STD-1913 (Picatinny) rail and comes with backup iron sights.
The PS90 delivers a compact, high-capacity platform suited for range use, close-quarters handling, and recreational shooting where a lightweight, ambidextrous design and a large magazine are prioritized. Its bullpup layout and factory accessory rail make it adaptable for optics and modern accessories while preserving the rifle’s compact footprint.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.





