FRT-15C3® (FLAT)

The FRT-15C3® (FLAT) is a two-stage (3-position) forced reset trigger from Rare Breed Triggers, engineered for the AR-15. This drop-in, duty-grade Safe/Semi/FRT® trigger is 100% manufactured and assembled in the USA for fast, controlled follow-up shots with simple, no-gunsmithing installation.

Take your AR-15 to the next level with the official Rare Breed Triggers FRT-15C3® (FLAT). This drop-in, duty-grade 3-position Forced Reset Trigger (Safe/Semi/FRT®) is 100% manufactured and assembled in the USA. The FRT-15C3® (FLAT) includes a 3-position ambidextrous safety selector and anti-walk pins for a secure, hassle-free installation.

Performance on the Range

Enhance your shooting experience with the FRT-15C3® (FLAT) Forced Reset Trigger. Designed to accelerate follow-up shots while remaining within legal parameters, the innovative Forced Reset system resets the trigger after each shot, enabling faster, more consistent firing. Each trigger pull fires one round, ensuring full legal compliance while delivering improved speed and performance. Perfect for competitive shooting, tactical training, or maximizing your AR-15’s potential.

Innovative Design and Features

3-Position Functionality: The FRT-15C3® (FLAT) features Safe, Semi, and Forced Reset modes, controlled via a 3-position, ambidextrous safety selector. Whether you’re focused on precision shooting or rapid-fire drills, this system adapts to your needs, offering versatility for both left- and right-handed shooters.

Effortless Installation: Designed for easy installation on Mil-Spec AR-15 lowers, the FRT-15C3® (FLAT) includes anti-walk trigger pins, providing secure attachment and preventing unwanted movement during extended use. The ambidextrous safety selector seamlessly integrates into any Mil-Spec lower receiver.

Two-Stage Semi-Automatic Mode & Single-Stage FRT® Mode

Semi-Automatic Mode: In Semi-Automatic mode, the trigger provides two distinct stages during the trigger travel. The first stage, approximately 2.5 lbs of pull weight, can be referred to as “take-up.” The second stage is a crisp “wall” requiring an additional 2 lbs of pressure to break. This results in a very smooth, crisp 4–4.5 lb trigger pull that allows for predictable, controlled, and extremely fast follow-up shots.

Forced Reset (FRT®) Mode: In FRT® mode, the trigger provides a heavier 5–5.5 lb single-stage pull weight throughout the entire length of travel.

Durable Construction for Long-Lasting Performance

Crafted from high-quality materials, including 7075 anodized aluminum and heat-treated S7 steel, the FRT-15C3® (FLAT) is built to endure heavy use. This robust construction ensures reliability and longevity, allowing you to push your AR-15 to its limits with confidence.

AR-15 Compatibility

The FRT-15C3® (FLAT) is compatible with Mil-Spec AR-15 lowers and requires a full-auto-compatible bolt carrier group for proper functionality. For optimal performance, we also recommend using an H2 or H3 buffer, or alternatively, an A5 buffer system. Please note: The FRT-15C3® (FLAT) may not fit in certain Colt models or other lowers with a sear block/shelf.

Unmatched Speed and Control

The FRT-15C3® (FLAT) is ideal for shooters seeking speed and precision. By mechanically resetting the trigger after each shot, then locking the trigger from being pulled until the BCG returns to battery, this system allows for faster follow-up shots without needing advanced techniques. The forced reset mechanism ensures the trigger returns to the non-firing position after each round, requiring the shooter to pull the trigger again, offering full control over each shot.

Why Choose the FRT-15C3® (FLAT) Forced Reset Trigger?

If you’re looking to boost your AR-15’s performance, the FRT-15C3® (FLAT) Forced Reset Trigger is the ultimate upgrade. With its rapid-fire capability, secure anti-rotation design, and seamless compatibility with the AR-15 platform, this trigger provides a superior shooting experience for competition, tactical use, or range drills. Unlock the full potential of your AR-15 with the FRT-15C3® (FLAT).

Manufactured and Assembled in the USA

What’s in the box

• 1 x FRT-15C3® (FLAT) Trigger
• 2 x Anti-Walk Pins
• 4 x Anti-Walk Pin Screws
• 1 x Selector Drum
• 2 x Selector Levers (1 Long & 1 Short)
• 2 x T10 Torx Selector Lever Screws
• 2 x T10 Torx Wrenches

FAQ

Does the FRT-15C3® (FLAT) fire more than one round per trigger pull?
No. Rare Breed Triggers states each pull of the trigger fires one round; the forced reset system mechanically resets the trigger after each shot and locks it until the bolt carrier returns to battery.

Is the FRT-15C3® (FLAT) a drop-in trigger?
Yes — it is designed as a drop-in trigger for the AR-15 with no gunsmithing, fitting, or machining required.

Single-stage or two-stage?
The FRT-15C3® (FLAT) is a two-stage trigger in semi-automatic mode (see the pull-weight details above).

Related forced reset triggers

• FRT-15C3®
• FRT-15L3®
• FRT-15L3® (FLAT)
• all forced reset triggers at Next Level Triggers

Patent Notice: This product is covered by one or more U.S. Patents, including U.S. Patent Nos. 12,038,247; 12,578,159; and 12,636,403. Additional patents may be pending. Unauthorized manufacture, use, sale, or importation of this product or its covered features may constitute patent infringement. As always, Rare Breed Triggers encourages the safe and responsible use of our products.

Legal notice: Forced reset triggers are regulated differently across jurisdictions and their status can change. Confirm current federal, state, and local laws before purchasing. Must be 21+ . Rare Breed Triggers encourages the safe and responsible use of its products.