Best FN PS90 Forced Reset Triggers 2026

A forced reset trigger uses the firearm's cycling action to mechanically push the trigger forward into reset after each shot, instead of relying on the trigger-return spring alone. Every round still requires its own deliberate trigger press, which is exactly what keeps the system a semi-automatic trigger: one press, one round. The mechanism just removes the slow, sloppy finger-reset between shots and replaces it with a positive mechanical reset driven by the gun's own cycle. The result feels rapid, but the shooter, not the trigger, fires each shot.

On the PS90 the three reset-class options implement this differently. The Dorin XPRT90 is a true FRT: it rebuilds the factory semi-auto trigger pack with nitrided 17-4 stainless hammer, sear, and reset components and a hard-anodized 6061 aluminum three-position selector whose third position is a dedicated Forced Reset mode. The Duality Arms RATL-R is a drop-in reset-assist system the maker positions in its KRISS Vector RATL-R lineage; it adds the same third selector position on a CNC-machined 7075 aluminum assembly, with its reset behavior labeled as vendor-stated rather than independently tested. The EP Armory FRT-G2 gets to the same three positions with two carbon-fiber composite parts, a three-position safety and a disconnect reset bar, which is why it costs a fraction of the other two and why its parts are wear items in a way nitrided steel is not. All three are distinct from the Dorin billet shoe and the Promoted Pawn Creep Killer and spring, which improve trigger feel but add no forced-reset behavior at all.

One naming note, because the search results for this product are a mess. The X-PRT 90, the FRT 90, and the Armory of Kings PS90 trigger are all the same Dorin Technologies unit. FN Specialties and Armory of Kings operate under the same parent company, National Firearm Sales Inc., and FRT 90 is the product's earlier designation. There is one Dorin forced reset trigger for the PS90, not three. To go deeper on how forced-reset selectors and FRTs actually work, read our Super Safety guide, and for the neighboring non-AR forced reset landscape on the roller-delayed 9mm, see our MP5 forced reset triggers guide and the KRISS Vector FRT guide, the closest sibling to this one, another non-AR PCC that takes a dedicated reset-assist trigger.

Installing an FRT in a PS90 is a trigger-pack job, not a receiver job. Every shipping PS90 reset kit works inside the factory trigger pack and none of them touches the barrel, bolt, or operating rod. The step that decides whether the install succeeds happens before you order, and it is a hammer check: EP Armory states that the newest PS90 fire control groups are neutered and need the Gen 1 type P90/PS90 hammer for its kit to function, and Dorin specifies factory semi-auto trigger packs only for the XPRT90. Identify your hammer first, then buy.

1. Check your hammer generation before you orderThis is the step that decides whether the job works at all. EP Armory tells FRT-G2 buyers to compare their own trigger pack against the fire-control-group photos on its product page, and states that the newest PS90 fire control groups are neutered and need the Gen 1 type P90/PS90 hammer. Dorin's XPRT90 is specified for factory semi-auto PS90 trigger packs only, and is not compatible with full-auto registered packs or with fire-control parts that have already been modified. Open the trigger pack and identify your hammer before money changes hands.
2. Match the install depth to the kit you boughtThe Duality Arms RATL-R and the EP Armory FRT-G2 are both drop-in kits that their makers state require zero modification to the factory fire control group. The Dorin XPRT90 goes deeper: it replaces the hammer, the sear, the reset component, and the selector inside the trigger pack, ships with an installation jig for the job, and FN Specialties recommends a qualified gunsmith perform it rather than a kitchen-table install.
3. Watch the maker's own install walkthrough firstEP Armory links a video walkthrough for the FRT-G2 from its product page and publishes written directions on its social channels. Duality Arms hosts a RATL-R installation video from its installation and troubleshooting page. Neither kit is complicated, but both involve seating a small part in a specific orientation, and a two-minute video removes the guesswork.
4. Swap in the three-position selectorEvery PS90 reset kit replaces the factory selector with a three-position unit whose third position is what engages the reset. FN Specialties labels the Dorin positions Safe, Semi, and Forced Reset. The Dorin selector is hard-anodized 6061 aluminum, the Duality Arms selector is carbon-fiber-reinforced polymer, and the EP Armory selector is a carbon-fiber composite. If you run a Strike Industries PS90 chassis with the RATL-R, Duality Arms states the kit's selector is the wrong one for that chassis and publishes a chassis-specific selector as a free download instead.
5. Lubricate the fire control group and the new partsEP Armory is explicit that the FRT-G2 can break if the fire control group and the FRT itself are not properly lubricated. Forced-reset cycling loads fire-control parts harder and faster than a standard trigger pull does, so oil the contact surfaces on reassembly and check them again after the first range session.
6. Function check before live fire, with a snap capFN Specialties requires that all safety and function checks be performed before live fire on an XPRT90 install. Cycle the selector through all three positions, confirm the safety blocks trigger movement, and confirm the trigger resets. Use a snap cap for the function check: EP Armory states the FRT-G2 must not be dry fired without one, because repeated trigger cycling with no cartridge or snap cap in place will cause damage.

Buy the Dorin XPRT90 ($450) if you want the original PS90 forced reset design and all-steel reset components. It is the only PS90 kit with nitrided 17-4 stainless hammer, sear, and reset parts, it replaces the factory selector with a hard-anodized 6061 aluminum three-position unit, and it ships with an installation jig. FN Specialties recommends a qualified gunsmith do the work and requires a full safety and function check before live fire. It is not compatible with full-auto registered PS90 trigger packs or with fire-control parts that have already been modified.

Buy the Duality Arms RATL-R ($250) if you want the third selector position without opening up the fire control group. It is a drop-in system with a CNC-machined 7075 aluminum primary assembly and a carbon-fiber-polymer selector, it installs with zero modification to the factory fire control group, and it bundles a magazine insert that converts factory 30-round PS90 magazines to 50-round capacity. Its reset behavior is vendor-stated rather than third-party verified, and Strike Industries PS90 chassis owners need the separate chassis selector Duality Arms publishes rather than the one in the box.

Buy the EP Armory FRT-G2 ($79.99) if price is the constraint and your trigger pack runs the Gen 1 type hammer. It is a two-part kit, a three-position safety and a disconnect reset bar, both carbon-fiber composite, and it installs with no modification to the host. The trade is material: composite parts take the forced-reset load that the XPRT90 handles in nitrided stainless, EP Armory warns the part can break without attentive fire-control lubrication, and the kit must never be dry fired without a snap cap. EP Armory backs it with a lifetime warranty.

Buy a feel upgrade if you do not want reset speed or legal questions. The Dorin billet aluminum shoe ($100) replaces the soft factory polymer trigger with a rigid 6000-series billet aluminum shoe in a five-minute drop-in that does not alter fire-control operation. The Promoted Pawn Creep Killer ($70) is the cheapest meaningful improvement: an insert that removes pre-travel slop and lateral play and shortens the reset, with the Reduced Trigger Weight Spring ($50) as a follow-on that lightens an existing Promoted Pawn Delta Trigger. Build out the rest of the gun in our rifle builder, and for the wider 5.7x28 ecosystem the PS90 belongs to, our 5.7x28mm pistols guide covers the handguns that share its cartridge.

A reset-assist or forced-reset trigger empties magazines fast, so PS90 magazines are the highest-ROI companion buy and the thing to handle before your first range trip. The PS90 runs proprietary top-mounted 5.7x28 polymer magazines that are not interchangeable with any other platform, so plan on buying genuine FN-pattern PS90 mags specifically. Buy a few 30s or 50s for the range, more for serious use, and keep a 10-round mag on hand for capacity-restricted states. Owners of the Duality Arms RATL-R get a head start here: it bundles a 30-to-50-round conversion insert, so an existing pile of 30-round mags can run at 50-round capacity.