FN PS90 SBR
FN PS90 SBR
Get the legendary FN PS90 bullpup in an ultra-compact SBR configuration - professionally converted, ATF-registered, and ready to transfer to you.
The FN PS90 SBR gives you the iconic bullpup design in a package under 20" overall length. We start with a factory-new PS90, install a 10.4" FN barrel with CMMG 1/2x28 thread adapter, handle the NFA engraving and ATF registration, then test-fire it with 10 rounds to verify function before it ships.
Chambered in 5.7x28, this semi-automatic firearm uses a closed-bolt blowback system and weighs just 5.8 lbs. The top-mounted magazine accepts 10, 30, or 50-round capacity. Ambidextrous controls make it suitable for any shooter, and the M1913 rail with integrated backup sight gives you mounting options for optics.
Why Choose the FN PS90 SBR
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FN Quality: We start with brand-new FN PS90 rifles and genuine FN 10.4" barrels
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Suppressor-Ready: CMMG 1/2x28 thread adapter installed for direct suppressor mounting
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Test-Fired & Verified: Every PS90 SBR is function-tested with 10 rounds before shipment
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True Ambidextrous Design: Reversible controls and top-loading magazine
Features
- Overall Length: Under 20 inches
- Barrel Length: 10.4" FN factory barrel with 1/2x28 thread adapter
- Caliber: 5.7x28mm
- Weight: 5.8 lbs (unloaded)
- Operating System: Closed-bolt blowback, semi-automatic
- Controls: Ambidextrous charging handle, safety selector, and magazine release
- Optics Rail: M1913 Picatinny top rail with integrated flip-up backup sight
- Stock: Integrated polymer bullpup stock with rear sling attachment point
- NFA Compliance: ATF-registered SBR with required engraving
What's Included
- Factory-new FN PS90 with professionally installed 10.4" barrel
- CMMG 1/2x28 thread adapter for suppressor compatibility
- One FN factory magazine
- NFA-compliant engraving
- FN user manual and documentation
- Original FN factory packaging
Why Buy Your PS90 SBR from Capitol Armory
Capitol Armory makes owning an SBR simple with our streamlined ATF paperwork processing and expert guidance through every step of the NFA process. We handle all the complex federal compliance details so you can focus on enjoying your firearm, plus our nationwide network ensures reliable delivery right to your door in all legal states. With our deep expertise in NFA items and commitment to customer service, you're not just buying an SBR; you're gaining a trusted partner who understands the unique requirements of short-barreled rifles.
| Weight | 6lb 4oz |
|---|---|
| Manufacturer | FN Herstal |
| Caliber | 5.7x28 |
| Action | Semi-Auto; Closed bolt |
| Barrel | 10.4 |
| Length | 19 |
| Thread Pitch | 1/2x28 |
FN PS90 SBR
These are new FN PS90 rifles Capitol Armory has converted, engraved, and registered as short-barreled rifles. The barrel installed is a new 10.4" FN barrel with a CMMG 1/2x28 thread adapter. Before conversion, they are new-in-box and unfired. After conversion, the SBR is test fired with 10 rounds to ensure proper function.
All instruction manuals, promotional material, and other factory items are included with the SBR. They are packaged in the original PS90 rifle box.
The PS90 is chambered in 5.7x28 and comes in at 5.8 lbs. The overall length of the SBR is under 20", making it one of the most compact firearms available. A closed-bolt blowback system operates the semi-automatic firearm. The stock is integrated into the housing and has a rear sling attachment point. The receiver is home to a 10, 30, or 50-round top-mounted magazine with an ambidextrous charging handle. The 1913 rail also houses a backup sight should an optic fail or not be mounted.
FEATURES
- Extremely compact
- Chambered in 5.7x28
- 50-round magazine availability
- Closed-bolt blowback operation
- Ambi controls
- M1913 accessory rail with integrated back-up sight
WHAT'S INCLUDED
- PS90 SBR
- User manual
- 1 round magazine
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