The PS90's Best-Kept Secret Is Finally Out
The FN PS90 has always been one of the most entertaining range guns money can buy. Compact, high-capacity, low-recoil, and genuinely fun to shoot. But if you've spent any trigger time with one, you already know the platform's glaring weak point: that factory trigger.
Consider what the PS90 delivers out of the box: a 26.2-inch overall length, a 50-round top-loading magazine, fully ambidextrous controls, and a 16-inch barrel, all in a package weighing under 7 pounds. Secondary market data shows 574 PS90 units sold over the past year, with new models retailing between $1,400 and $1,700 and demand climbing by 24 units over the last 12 months. This platform isn't slowing down.
AR-platform shooters have had FRT options since 2020. PS90 owners have been waiting six years. That gap is finally closing. This article covers what makes a PS90-specific FRT necessary, what options exist right now, how the 5.7x28mm cartridge pairs with forced reset mechanics, and what's coming next from McClane Defense Co.
Why the PS90 Trigger Needed Fixing — And Why It's Hard to Fix
The factory PS90 trigger has a well-earned reputation: heavy, mushy, and vague. The culprit is the bullpup linkage system. Because the PS90's fire control group sits behind the magazine well (near the buttpad), a series of mechanical linkages must bridge the gap between the forward-mounted trigger and the rear-mounted hammer and sear. Every linkage point adds friction. Every inch of travel distance adds slop.
This is an engineering constraint that makes aftermarket trigger development genuinely difficult. In a standard AR-15, the trigger, hammer, sear, and disconnector all live in the same compact lower receiver. Swapping in an FRT means replacing components within a well-understood, standardized geometry.
The PS90 shares none of that architecture. The spatial separation of the trigger from the bolt and fire control group, with the magazine and entire cartridge path sitting in between, means no AR-pattern FRT geometry can be adapted. A standard AR-15 FRT-15 will not function in a PS90. The proprietary trigger linkage architecture is entirely incompatible.
Designing a PS90-specific FRT requires building proprietary internal geometry from scratch. That's expensive, time-consuming, and technically demanding. It's exactly why so few options exist as of 2026, and why any working solution represents a genuine technical achievement that PS90 owners should take seriously.
FRT Legality in 2026: What PS90 Owners Need to Know
Following the May 16, 2025 DOJ settlement with Rare Breed Triggers, forced reset triggers are federally legal and are not classified as machine guns under the NFA. That settlement removed the single biggest barrier that kept enthusiasts on the sidelines for years.
The state-level picture requires more attention. Currently, 33 states permit FRTs under both federal and state law. However, 15 states plus D.C. prohibit them under state-level statutes. Verify your state's laws before purchasing.
The mechanical basis for FRTs' legal classification is straightforward: each round fired still requires a separate trigger pull. The trigger resets mechanically after each shot, but the shooter must actuate it again. That's a semi-automatic action, period.
McClane Defense Co sells only 100% legally compliant products, and no FFL is required for any of our products. We strongly encourage every buyer to confirm their state's laws before ordering.
PS90 FRT Options: A Complete Roundup of What's Available
Until very recently, PS90 owners had zero FRT-class trigger options. That's changed in 2026, and we're putting together the most comprehensive side-by-side overview of what's currently available. No other resource covers all of these options in one place with honest mechanical distinctions between them.
Dorin Technologies X-PRT 90 (FRT90)
Unveiled at SHOT Show 2026 in January, the X-PRT 90 is one of the first purpose-built forced reset triggers for the PS90 platform. Developed by Dorin Technologies and marketed through FN Specialties, this is the real deal.
The X-PRT 90 replaces key factory fire-control components, swapping the factory polymer hammer and sear for heat-treated, nitrided 17-4 stainless steel parts. The factory 2-position selector gets replaced with a hard-anodized 6061 aluminum 3-position unit: Safe (S), Semi (1), and Forced Reset (F).
In Forced Reset mode, the trigger mechanically resets forward after each shot when fully actuated. This enables faster follow-up shots while still requiring a separate pull per round. The materials upgrade alone, from polymer to nitrided stainless steel, represents a significant improvement in durability and consistency.
The X-PRT 90 is priced at $450 MSRP and is currently on pre-order for the September to October 2026 production run through FN Specialties. That price premium is justified by the engineering complexity and materials quality involved in building a true forced reset system for the PS90's unique architecture.
Duality Arms RATL-R: The Ship-Now Alternative
The Duality Arms RATL-R is a drop-in reset-assist system for the PS90 priced at $250. It ships within one to two weeks, making it the only PS90 trigger upgrade option with immediate availability as of mid-2026.
The RATL-R adds a third selector position and speeds the trigger reset, but there's an important mechanical distinction: it's categorized as a reset-assist system, not a true forced reset trigger. The reset is faster than factory, but it doesn't deliver the same mechanical aggressiveness as a purpose-built FRT like the X-PRT 90.
For PS90 owners who want a meaningful trigger improvement right now, without waiting for the X-PRT 90 production run, the RATL-R is a solid option. Set your expectations accordingly: it's a capable upgrade at a more accessible price point, but it's not the same experience as a true FRT. Choose based on your performance expectations and budget.
Coming Soon: McClane Defense Co PS90 FRT Kit
McClane Defense Co is releasing a dedicated FRT kit for the PS90 platform very soon. We're entering a market with extremely limited platform-specific options and strong enthusiast demand, and we're building this kit specifically for the community that's been waiting the longest.
PS90 owners have been underserved for years. No domestic, specialist-backed FRT option has existed for this platform until now. Our PS90 FRT kit will be consistent with everything we stand behind: 100% legally compliant, ships directly from the USA, includes instructions and troubleshooting support, and is guaranteed to run.
Follow McClane Defense Co for the release announcement. We specialize in platform-specific forced reset and super safety solutions not widely available elsewhere, and the PS90 kit is one we're particularly proud to bring to market.
Why 5.7x28mm and Forced Reset Triggers Are a Natural Match
The 5.7x28mm cartridge was developed by FN Herstal in response to a NATO request for a personal defense weapon round. It's now standard issue in 40 countries and experiencing a civilian resurgence, with new platforms from Smith & Wesson, Ruger, PSA, and Tisas bringing fresh shooters into the ecosystem.
The ballistic profile speaks for itself: a 23-grain bullet at approximately 2,800 fps generating 397 ft-lbs of energy from a 10.35-inch barrel. That's roughly 70% faster at the muzzle than 9mm, with a dramatically flatter trajectory. Applications range from self-defense and varmint hunting to target shooting and PDW use. It's a genuinely versatile cartridge that rewards a faster trigger reset in every scenario.
The pairing with an FRT matters for a specific mechanical reason. The PS90's blowback-operated action combined with the lightweight 5.7x28mm produces near-zero felt recoil. Shooters describe it as a gentle push rather than a sharp kick. On heavier-recoiling platforms, muzzle rise and shooter recovery time can outpace the FRT's mechanical reset. You physically can't get back on target as fast as the trigger resets.
On the PS90, that limitation disappears. The shooter is ready for the next shot as fast as the trigger can reset, making the FRT's speed advantage fully exploitable. The 5.7x28mm's growing civilian ecosystem also means many new shooters discover the PS90 as the natural carbine companion to their 5.7-chambered pistol, and an FRT makes that discovery even more rewarding.
The PS90 + SBR + FRT Build: The Holy Trinity
An emerging enthusiast build trend combines three upgrades into the ultimate compact PDW configuration: an SBR barrel conversion, a quality optic, and an FRT. If you've been around the PS90 community, you've heard this called the "holy trinity" build, and for good reason.
The SBR conversion involves removing the barrel shroud to expose the PS90's original 10.4-inch barrel. This drops the overall length from 26.2 inches to a dramatically more compact package that transforms handling and maneuverability. Many owners consider this step essential to experiencing what the PS90 was originally designed to do.
The FRT completes the build. With the SBR's shorter sight radius and close-quarters role, faster follow-up shots enabled by forced reset mechanics directly serve the platform's PDW mission. You're not just making the gun shorter; you're making it faster and more capable in the role it was built for.
One important note: SBR conversion requires a registered NFA tax stamp. Verify your local laws before starting this build. McClane Defense Co's upcoming PS90 FRT kit is designed to fit naturally into this configuration, giving builders a specialist-backed, guaranteed-to-run trigger solution for their ultimate PS90 setup.
The PS90 FRT Era Has Arrived — Don't Miss It
The PS90 is a uniquely capable platform that has been held back by its factory trigger for too long. 2026 is the year that finally changes.
Your options are clear: the Dorin X-PRT 90 at $450 for those willing to wait for the September to October production run, the Duality Arms RATL-R at $250 for immediate availability, and McClane Defense Co's upcoming PS90 FRT kit for enthusiasts who want a specialist-backed, guaranteed-to-run solution from a brand that lives and breathes this space.
With FRTs federally legal following the May 2025 DOJ settlement, there has never been a better time to upgrade your PS90's trigger. Verify your state's laws first, then make your move.
PS90 owners have waited six years for this moment. Follow McClane Defense Co to be first in line when our PS90 FRT kit drops. This community takes performance and legal compliance equally seriously, and so do we. The wait is over.
0 comments