The Partisan Disruptor is the best-selling FRT trigger for good reason. At $299, it delivers reliable forced reset functionality with true drop-in installation and proven reliability through 6,000+ rounds of documented testing. Read our full Partisan Disruptor review for detailed performance data.

Why It Wins: The cassette-style design drops into any mil-spec lower with just a torx wrench for the included anti-walk pins. The 3-position selector (Safe, Semi, Enhanced) lets you switch between standard semi-auto and forced reset. The reset is clean and consistent. Note that the semi-auto break is noticeably gritty out of the box, worse than a milspec FCG, though it may improve with break-in.

Watch Out For: The semi-auto trigger feel is a trade-off at this price. The oversized, non-ambidextrous safety selector is less positive than milspec. Only a 1-year warranty. Compatibility issues reported with SIG MCX (light primer strikes) and PSA AR-V 9mm PCC (ejection issues). M16-cut lowers may require staking an internal screw. Requires H2 buffer minimum with H3 recommended for barrels under 16 inches.

Best For: First-time FRT buyers, budget-conscious shooters, standard DI and piston AR-15 builds.

The AS Designs Arc Fire represents the cutting edge of forced reset selector technology. Its patent-pending Active Reset Clutch (ARC) system reduces internal drag compared to first-generation selectors, resulting in noticeably smoother operation during rapid fire. The Arc V2 revision unveiled at SHOT Show 2026 further improved the internal geometry.

Why It Wins: The Arc Fire supports over 10 firearm platforms: AR15, JAKL, MP5, MCX, MPX, SCAR, BRN-180, G3, AP53, UMP, STRIBOG, and DISSENT, with more in development. Three configurable throw options (45/90, 45/180, 90/180 degrees) let you tune the selector to your shooting style. It works with most premium triggers including Geissele SSA/SSA-E/SSA-X/SD3G, ALG, BCM PNT, PSA EPT, Aero, and CMMG.

Watch Out For:Incompatible with LaRue MBT-2S, CMC Single Stage, and Rise Armament RA-140 triggers. Like all FRS systems, it requires practice to master the ARC mode. The learning curve is slightly steeper than full FRT triggers since you're working with your existing trigger feel. That said, the Arc Fire is notably less finicky than the Atrius FRS. While some tuning and tinkering may still be needed depending on your setup, users consistently report the Arc Fire is easier to get running reliably out of the box.

Best For: Multi-platform shooters, those with premium triggers they want to keep, anyone running MCX, MPX, SCAR, or MP5 platforms. Read our full ARC-Fire review for 400-round test results on the SIG MCX Spear LT.

The Atrius FRS was one of the first forced reset selectors to market and remains a solid option. At $249 it's the most affordable FRS, with a mechanically leveraged design that reduces stress on your rifle compared to full FRT triggers. Read our full Atrius FRS review for detailed analysis.

Why Consider It: Ambidextrous design with crisp 90-degree engagement. Heat-treated 4140 steel construction. Drop-in installation with standard mil-spec fire control groups. Three modes: Safety, Semi, and Full-Semi with instant trigger reset.

Watch Out For: AR-15 only (no multi-platform support like Arc Fire). Single throw option (90-degree). Works with mil-spec and Geissele super safe cut triggers only, no broader aftermarket trigger compatibility. Trigger tail requires minor material removal for cam engagement. The Atrius is also known to be finicky to get running properly; expect more tinkering and tuning compared to the Arc Fire before it runs reliably.

Best For: AR-15 shooters on a budget who want to preserve their existing trigger, those prioritizing reduced rifle wear.

The Mars Super Safety is the most affordable forced reset selector on the market at $139. Like the Arc Fire and Atrius, the Mars replaces your safety selector and works with your existing mil-spec trigger. The 3-position selector (Safe, Semi, Enhanced Semi) uses the bolt carrier's movement to mechanically reset the trigger for faster follow-up shots.

Why Consider It: At $139 the Mars is nearly half the price of the Arc Fire and Atrius. The 4140 alloy steel construction is solid, and installation is straightforward since you keep your existing trigger. For shooters who want to try forced reset without a major investment, the Mars is the lowest-risk entry point.

Watch Out For: AR-15 only with no multi-platform support. Requires mil-spec fire control group. Not ambidextrous. Less community documentation and aftermarket support compared to Arc Fire or Atrius. 2-week lead time on orders.

Best For: Budget-conscious AR-15 shooters who want to try forced reset at the lowest cost, those running a standard mil-spec trigger.

For deeper technical detail, check out our Super Safety & FRT Guide, which covers how forced reset systems work, lower receiver compatibility (with an interactive checker), installation, buffer tuning, and includes a ROF calculator to measure your burst RPM. For standard trigger comparisons, see our AR Trigger Guide.

All forced reset systems share the same goal: mechanically reset the trigger against the shooter's finger as the bolt carrier group cycles. The firearm remains semi-automatic with one trigger function per round. The difference is that the trigger resets at the speed of the BCG rather than waiting for manual release, allowing cyclic rates of 1,000-1,200 RPM.

There are two approaches to achieving this:

• FRT (Forced Reset Trigger): Replaces your entire fire control group with a self-contained trigger unit. The Partisan Disruptor is a full trigger assembly. More consistent operation, but accelerates internal wear since the entire trigger mechanism cycles at high speed.
• FRS (Forced Reset Selector / Super Safety): Replaces only your safety selector and works with your existing mil-spec trigger. The AS Designs Arc Fire, Atrius FRS, and Mars Super Safety take this approach. Preserves trigger longevity, costs less, and installs faster since you keep your existing FCG.

Neither type is a binary trigger (which fires on pull and release) or a bump stock (which requires forward pressure). Forced reset systems are a distinct category of semi-automatic mechanism.

Both FRT triggers and FRS selectors are federally legal following the May 2025 DOJ settlement acknowledging they are not classified as machine guns under the National Firearms Act. The settlement resolved litigation surrounding the Rare Breed FRT-15 and established precedent for all forced reset mechanisms.