Description

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

The FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 from Rare Breed is a drop-in trigger system engineered specifically for the HK MR223 and MR556 platforms. This trigger operates on a forced reset mechanism, which mechanically returns the trigger forward after each shot, enabling a rapid firing cycle while maintaining semi-automatic function. Each unit is built to factory tolerances and requires no permanent modifications to your rifle.

Overview

The FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 replaces the factory trigger group with a precision-machined assembly that offers three selectable positions: Safe, Semi-Automatic, and Forced Reset. The flat trigger shoe provides a consistent finger placement and a clean, single-stage break. This trigger is designed exclusively for the HK MR223 and HK MR556 lower receivers and uses the factory hammer and trigger pins. All components are made from heat-treated steel and finished with a corrosion-resistant coating.

Features & Specs

• Three-position selector: Safe, Semi-Automatic, and Forced Reset mode (FRT) for the HK MR223 and HK MR556
• Flat trigger shoe with a single-stage pull; forced reset cycle mechanically resets the trigger after each discharge
• Manufacturer: Rare Breed; Category: Triggers; drop-in design with no permanent modifications required

• Machined from billet steel with a black nitride finish for durability and consistent performance in the HK MR223 and MR556
• Includes all necessary springs, pins, and installation hardware; compatible with factory lower parts
• Tested to function with standard and high-pressure ammunition; designed for the HK MR223 and HK MR556 bolt carrier group

• Weight: approximately 4.5 oz; overall length matches factory trigger group dimensions
• Single-stage pull weight: factory set at approximately 4.5 to 5.5 pounds (not user adjustable)
• Forced reset function engages only in the third selector position; safe and semi-automatic positions remain unchanged

Who It’s For

This trigger is intended for HK MR223 and HK MR556 owners who want a mechanically forced reset system without modifying the receiver. It is suited for shooters who understand the function and legal classification of forced reset triggers in their jurisdiction. The FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is designed for range use, competition, and training applications where rapid follow-up shots are desired. It is not recommended for duty or defensive use without thorough individual evaluation and compliance with all applicable laws.

Shipping & FFL

This item ships directly to your address. No FFL transfer is required for shipment within the United States, as the FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is classified as a firearm component, not a receiver or complete firearm. However, you must be at least 18 years of age to purchase and comply with all federal, state, and local laws regarding the possession and use of forced reset triggers. Some states and municipalities may restrict or prohibit the ownership of such devices. It is your responsibility to verify legality before ordering. Rare Breed and this retailer assume no liability for misuse or non-compliance.