What Is a Forced Reset Trigger (FRT)? FRT Legality and How They Work | Impact Guns

Forced reset triggers, almost always called FRTs in the shooting community, are the fastest semi-automatic AR-15 triggers ever produced. After several years of legal turbulence that included an ATF reclassification attempt and federal litigation, the FRT category has stabilized as ATF-cleared semi-automatic equipment available to civilian buyers in most states. This article covers what an FRT actually does, how the mechanism works, the current legal status, and what shooters should know before buying one.

How a Forced Reset Trigger Works

A standard AR-15 trigger has a simple cycle: pull the trigger, the hammer falls, the round fires, the bolt cycles, and the shooter releases the trigger to let it reset forward under spring pressure for the next shot. That reset step — the shooter’s finger physically letting the trigger move forward — is the rate-limiting factor in semi-automatic fire. A faster shooter resets faster; a tired or stressed shooter resets slower.

A forced reset trigger changes the reset mechanism. Instead of relying on spring pressure plus the shooter releasing the trigger, the FRT uses the rearward motion of the bolt carrier (which happens every time the rifle fires) to mechanically push the trigger forward against the shooter’s finger. The reset happens during the action’s cycling, not after it. The next shot is mechanically ready before the shooter could have completed a manual reset.

Crucially, each shot still requires a discrete, deliberate trigger pull. The FRT does not fire multiple shots on a single pull. It does not fire on the trigger release (that’s a binary trigger, a different mechanism). It accelerates the reset only — the firing event remains one pull, one shot, which is the legal definition of semi-automatic fire under federal law.

Are FRTs Machine Guns?

This is the question that drove the ATF dispute. Machine guns under the National Firearms Act fire more than one shot per single function of the trigger. An FRT fires exactly one shot per trigger function — the “function” is the trigger pull, and one pull produces one shot. The reset between shots, even when mechanically assisted, doesn’t change the count of shots per trigger function.

The ATF initially disagreed. In 2022, the agency classified specific FRT designs as machine guns, triggered enforcement actions against Rare Breed Triggers, and seized inventory. Years of litigation followed. Federal courts ultimately rejected the ATF’s reasoning, and by 2024-2025 the agency had settled the leading cases and acknowledged that FRTs operating as described — one trigger pull, one shot, mechanical reset assist only — are legal semi-automatic equipment under federal law. The case law and settlement language cover the FRT category as a class, not just specific models named in the litigation.

State Laws Are a Separate Question

Federal legality does not equal state legality. Several states restrict FRTs separately from federal law — either by explicit FRT prohibition, by “rapid fire device” statutes that capture FRT designs, or by general assault weapon legislation that incorporates trigger restrictions. The current restricted-state list includes California, New York, New Jersey, Washington, and several others. The list changes as state legislatures act, and what was legal last year may not be legal this year in jurisdictions actively legislating on rapid-fire devices.

Before purchasing an FRT, verify your state’s current statute. Local ordinances within otherwise permissive states can add additional restrictions, particularly in some urban jurisdictions. The product listing on impactguns.com notes restricted states, but buyers bear final responsibility for compliance with their specific state and local law.

What FRTs Are Useful For

FRTs are training tools, competition equipment, and recreational shooting accessories — not standard duty or defensive triggers. The high rate of fire shines in specific applications: 3-gun competition stages with multiple targets, recreational range shooting where rapid follow-up fire is the goal, and training scenarios that benefit from compressed cycle time. For typical hunting, defensive use, or precision shooting, FRTs offer no advantage and arguably cost some precision compared to a quality two-stage match trigger.

The shooter still has to hit the target — faster shots that miss don’t help. FRT performance rewards strong recoil control, solid stance, and visual processing fast enough to verify each sight picture before the next shot. New shooters often find FRTs harder to manage well than experienced shooters do, because the rapid cycle eliminates the natural pause that allows reorientation between shots.

What to Look for in an FRT

Drop-in installation is the standard expectation — modern FRTs from Partisan Triggers, Rare Breed, and other established makers install in any mil-spec AR-15 lower with no permanent modifications. The trigger group includes the FRT, the matched hammer, and pins; installation takes minutes with a punch.

Compatibility with your specific rifle is the second consideration. FRTs cycle the action faster than standard triggers and demand a properly gassed rifle. Heavily restricted adjustable gas blocks, under-gassed builds, and underweight buffer setups are the common causes of FRT cycling problems. The standard recommendation is a non-restricted gas system and an H2 or H3 carbine buffer; full-power 5.56 NATO or quality .223 ammunition during break-in eliminates most cycling complaints.

Build quality varies between FRT makers. Premium-tier designs (Rare Breed) have the longest track record; newer entrants like Partisan Triggers offer FRT performance at lower price points. Read user reports, verify the maker’s warranty terms, and confirm the specific FRT model is covered by current ATF settlement language — not all historical FRT designs are.

Where the FRT Market Is Heading

With federal legal status settled, the FRT category has expanded from a single dominant maker to a more competitive market with multiple manufacturers offering price-tiered options. Expect continued product development, refinements to cycling reliability, and broader compatibility across AR-15 variants and even some non-AR platforms. State-level legal challenges will continue in restrictive jurisdictions; the federal status appears stable.

For AR-15 shooters interested in the category, this is a reasonable time to buy — the legal questions that delayed purchases through 2022-2024 have resolved, and competition between makers has improved value across the price spectrum. See our FRT triggers category for current inventory, or browse Partisan Triggers for the Disruptor FRT lineup.