FN PS90 5.7x28mm Bullpup Rifle – Your Compact Range Companion
The FN PS90 5.7x28mm bullpup rifle is a semi-auto, ambidextrous bullpup that chambers the hard-hitting 5.7x28mm cartridge. It uses a closed-bolt blowback action and a synthetic thumbhole stock for balanced handling and solid recoil control. With a MIL-STD 1913 top rail and backup iron sights right out of the box, you’re ready to mount optics and hit the range or secure your home. Whether you’re a recreational shooter or a first-time buyer looking for something different, this rifle delivers reliability and low recoil in a compact package.
| Specification | Details |
|---|---|
| Manufacturer | FN Herstal (per manufacturer specs) |
| Model | PS90 |
| Material | Synthetic polymer stock, steel barrel |
| Compatibility | 5.7x28mm ammunition (e.g., SS197SR, SS198LF) |
| Finish | Flat Dark Earth (FDE) as shown |
| Weight | 6.7 lbs (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Bullpup Design – Why it matters: You get a full-length 16-inch barrel in a compact overall length (just 26 inches), making it easier to maneuver in tight spaces like vehicles or hallways.
- Ambidextrous Controls – Why it matters: Lefties and righties can run the safety, mag release, and charging handle without changing grip, so you stay on target faster.
- MIL-STD 1913 Picatinny Rail – Why it matters: Mount any red dot, holographic, or magnified optic without adapters, and co-witness with the included backup iron sights.
- Closed-Bolt Blowback Operation – Why it matters: Simple, reliable action with fewer moving parts than gas systems; cleans up easy and runs with minimal maintenance.
- Ported Barrel – Why it matters: Reduces muzzle rise and helps keep follow-up shots fast and accurate, especially for new shooters.
Who It’s For
This rifle is built for recreational shooters who want something that stands out at the range, for first-time buyers who want low recoil and easy handling, and for anyone looking for a personal defense or truck gun that doesn’t take up much space. If you like the idea of a carbine that handles like an SMG but shoots a flat-shooting round, this is your rifle.
Pros and Cons
Pros: Ultra-compact bullpup layout, low recoil 5.7x28mm round, ambidextrous controls, built-in rail and sights, reliable blowback action, 30-round magazine capacity.
Cons: The trigger pull is heavier and a bit mushy compared to a traditional AR trigger (around 8-9 lbs). You can upgrade it with an aftermarket trigger, but it’s something to be aware of out of the box.
Comparison: FN PS90 vs Ruger LC Carbine vs CMMG Banshee
| Feature | FN PS90 | Ruger LC Carbine | CMMG Banshee 5.7x28mm |
|---|---|---|---|
| Action | Closed-bolt blowback | Blowback | Radial delayed blowback |
| Barrel Length | 16.0 inches | 16.1 inches | 8 or 16 inches |
| Overall Length | 26.0 inches | 34.4 inches | 26.5 inches (16-in barrel) |
| Weight | 6.7 lbs | 6.4 lbs | 6.5 lbs |
| Mag Capacity | 30 rounds | 10 or 17 rounds | 10 or 25 rounds |
| Ambidextrous | Yes | No (right-side safety) | Ambidextrous safety |
| MSRP | $1,699 | ~$900 | ~$1,500 |
Frequently Asked Questions
Is the FN PS90 a good gun?
Absolutely. The PS90 is known for its reliability, low recoil, and compact size. It’s a favorite among recreational shooters and home defenders because it’s easy to handle, accurate out to 150 yards, and the 5.7x28mm round offers good terminal performance with proper ammunition. The ambidextrous controls make it a solid choice for lefties too.
Is an FN 5.7 legal?
Yes, the FN PS90 is legal in most U.S. states. However, some states like California, New York, and Massachusetts have restrictions on magazine capacity or feature bans. Always check your local laws before purchase. We ship to all 50 states but follow state-specific regulations.
Is the FN 5.7 powerful?
The 5.7x28mm round is a high-velocity, low-recoil cartridge. It’s not as powerful as a .223/5.56 or 9mm in terms of energy, but it offers excellent armor-piercing capabilities (with the right ammo) and flat trajectory. For personal defense or varmint hunting, it’s very effective. Muzzle velocity is around 2,350 fps with SS197SR.
What guns shoot 5.7x28mm?
Besides the FN PS90, other guns that shoot 5.7x28mm include the FN Five-seveN pistol, Ruger LC Carbine, CMMG Banshee, and the PSA Rock 5.7 pistol. The caliber is growing in popularity for its low recoil and high capacity.
Is the FN PS90 legal in New York?
In New York, the PS90 is legal as a semi-auto rifle, but it may be subject to the SAFE Act’s feature ban. The standard model has a thumbhole stock and detachable magazine, which could be restricted. You’ll need to check with your local FFL for specific compliance. We do not ship to New York without confirmation of legality.
Why Buy from Us?
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more semi-auto rifles in our Semi Auto Rifles category, or check out our 5.7x28mm Ammo and Optics & Sights to complete your setup.
Last updated: April 2026





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