About this product

FRT-15L3 Single-Stage (3-Position) Forced Reset Trigger for the AR-15

The FRT-15L3 Single-Stage (3-Position) Forced Reset Trigger for the AR-15 represents a measured evolution in forced-reset trigger design. Manufactured by Rare Breed, this trigger system offers a three-position selector that allows the operator to choose between safe, semi-automatic, and forced-reset modes. Each position is mechanically distinct, with no ambiguous detents or crossover travel. The forced-reset function operates by using the bolt carrier’s forward motion to physically reset the trigger shoe, enabling a controlled cyclic rate that is reproducible across different upper receiver configurations.

Overview

The FRT-15L3 is a single-stage, drop-in trigger assembly built to interface directly with standard AR-15 lower receivers. Unlike binary triggers or modified full-auto sears, this system relies on a mechanical lever that interfaces with the bolt carrier. When the selector is in the third position, the trigger resets automatically during the bolt’s return stroke, allowing the shooter to achieve a rapid fire rate limited only by the cyclic rate of the firearm. The unit is machined from 8620 steel and 7075 aluminum, with a black nitride finish on all wear surfaces. No modification to the lower receiver is required, and the trigger installs using standard trigger and hammer pins.

Features & Specs

• Single-stage trigger pull weight: 4.5 to 5.5 pounds, measured at the center of the shoe, with a crisp break and zero take-up in forced-reset mode
• Three-position selector: Safe (blocked), Semi (standard semi-automatic), and Reset (forced-reset mode where the trigger resets via bolt carrier contact with the internal lever)
• Drop-in cassette design: pre-assembled housing with captive pins, sear, hammer, and reset lever; no trigger guard or selector swap required for installation
• Material specifications: hammer and sear are 8620 steel, case-hardened to 58-60 HRC; housing is 7075-T6 aluminum, hard-coat anodized per MIL-A-8625, Type III, Class 2
• Compatibility: designed for AR-15 platform rifles and pistols chambered in 5.56 NATO, .223 Remington, and .300 Blackout; does not require any aftermarket bolt carrier modifications

• Reset mechanism: lever-activated forced reset that engages only when the selector is in the third position; semi-automatic mode remains mechanically identical to a standard single-stage trigger
• Safety features: hammer block engages when selector is on Safe; trigger cannot be pulled when selector is between positions; reset lever is disengaged in semi mode to prevent unintentional forced-reset cycling
• Installation torque specifications: 15 in-lbs for trigger and hammer pin retaining screws (included); uses standard KNS Precision anti-walk pins (included in package)

Who It Is For

The FRT-15L3 Single-Stage (3-Position) Forced Reset Trigger for the AR-15 is intended for experienced shooters who require a reliable, mechanically repeatable forced-reset system for range use, competitive shooting events, or controlled-fire training. It is not a duty-grade trigger for law enforcement or military applications, as the forced-reset mode demands consistent bolt carrier travel and proper lubrication. Shooters who build their own AR-15s, who are familiar with trigger work and AR-15 platform tolerances, will find the drop-in design straightforward. The three-position selector gives the user the option to revert to standard semi-automatic operation at any time, making the trigger suitable for general-purpose rifles where forced-reset capability is desired only in specific scenarios.

Shipping & FFL

This trigger is classified as a firearm component and is not subject to NFA regulation. It ships directly to the customer without requiring transfer through a Federal Firearms License (FFL) holder. However, because the FRT-15L3 Single-Stage (3-Position) Forced Reset Trigger for the AR-15 changes the firing characteristics of the rifle, it is the buyer’s sole responsibility to verify that this product is legal to own in their state and local jurisdiction. Rare Breed and the retailer assume no liability for state or local compliance. Standard shipping rates apply; delivery is via UPS or FedEx with adult signature required. No returns on installed triggers. For questions about compatibility with specific lower receivers, contact customer support with your receiver’s manufacturer and model number before ordering.