FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556

Overview

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is a precision drop-in trigger system engineered specifically for the HK MR223 and MR556 platform. Manufactured by Rare Breed, this trigger delivers a three-position selector that provides safe, semi-automatic, and forced reset functionality. The forced reset mechanism returns the trigger forward after each shot, enabling rapid follow-up shots while maintaining shooter control. Built to OEM-grade tolerances, the FRT-MR3™ installs without permanent modification to your firearm and operates within the technical specifications of the HK gas piston system. This is a purpose-built component for shooters who demand consistent reset performance and reliable function across varied shooting conditions.

Features & Specs

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 incorporates Rare Breed’s proven forced reset geometry into a compact housing that fits standard HK lower receivers. Each unit is machined from heat-treated steel and aluminum components, with a nickel-teflon coated trigger shoe for reduced friction. The trigger pull weight is factory-set to a single-stage break with a crisp, repeatable wall. The three-position selector clearly indexes safe, semi-automatic, and forced reset modes. Below are the key specifications and design features:

• Manufacturer: Rare Breed; Category: Triggers; Platform-specific for HK MR223 and HK MR556
• Three-position selector: Safe, Semi-Automatic, Forced Reset (FRT)
• Single-stage design with nickel-teflon coated shoe; heat-treated steel sear engagement surfaces
• Drop-in installation; no permanent firearms modification required; uses factory hammer and trigger pins

Who It’s For

This trigger is designed for Ohio-based shooters who own an HK MR223 or MR556 and want to upgrade their fire control system with a component that delivers predictable forced reset performance. It suits competitive shooters training for speed drills, firearms instructors demonstrating rapid shot cycles, and enthusiasts who value mechanical precision over gimmicks. The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is not a novelty item; it is a functional upgrade for those who understand trigger mechanics and want a repeatable, consistent reset without modifying their firearm’s core design. If you own an MR-platform rifle and demand a trigger that matches the build quality of the host weapon, this is the correct component.

• HK MR223 and MR556 owners seeking a factory-spec forced reset trigger upgrade
• Shooters who train for speed and recoil management with a focus on trigger control
• Those who prefer drop-in installation without gunsmithing or permanent alterations

Shipping & FFL

This trigger ships directly to your door within the United States, including Ohio. No Federal Firearms License (FFL) transfer is required for this product because it is a firearm component, not a complete firearm frame or receiver. Rare Breed triggers are classified as firearm parts and are not subject to NICS background checks or transfer fees. However, you must comply with all applicable state and local laws regarding trigger possession and installation. Ohio residents are responsible for verifying that their specific firearm configuration and use complies with state statutes. We recommend consulting with a qualified firearms attorney if you have questions about local regulations. All sales are final once the package leaves our facility. Standard shipping rates apply, with tracking provided upon fulfillment.

• No FFL transfer needed; ships directly to your residential or business address
• Ohio customers: verify compliance with state and local laws prior to purchase
• Standard shipping with tracking; no signature required for delivery