Chambered in the 5.7x28mm cartridge, the FN PS90 utilizes blowback operation and fires from a closed bolt for greater accuracy and reliability. The FN PS90s civilian legal 16.04" cold hammer-forged MIL-SPEC barrel is equipped with an integrated muzzle brake to reduce recoil. Dual magazine latches, cocking handles and an innovative synthetic thumbhole stock with a molded-in sling attachment point help make the FN PS90 fully ambidextrous.
| Model | PS90 |
| Caliber | 5.7x28mm |
| Operating System | Blowback |
| Stock Finish Group | Brown |
| Capacity | 50+1 |
| Stock Material | Synthetic |
| Action | Semi-Auto |
| OAL | 26.23" |
| Hand | Ambidextrous |
| Sights | Backup Iron |
| Barrel Finish | Black |
| Barrel Material | Hammer Forged Steel |
| Muzzle | Ported Muzzle Brake |
| Receiver Description | Picatinny Rail |
| Receiver Material | Aluminum Alloy |
| Safety | Ambidextrous |
| Stock Description | Bullpup w / Thumbhole |
| Barrel Description | Steel |
| Barrel Length | 16.04" |
| Max Capacity | 50 |
| Receiver Finish | Flat Dark Earth |
| Weight | 6.28 lbs |
| Stock Finish | Flat Dark Earth |