Description

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

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is a precision-engineered drop-in trigger system designed specifically for the HK MR223 and HK MR556 platforms. Manufactured by Rare Breed, this trigger delivers a distinct three-position selector function that combines a standard semi-automatic mode with a forced-reset cycling mechanism. It is built to the same exacting tolerances as the host firearm, providing consistent performance without modification to the lower receiver.

Overview

The FRT-MR3™ is a single-stage, forced-reset trigger that operates through three selectable positions. Position one is a standard semi-automatic mode with a crisp break and short reset. Position two enables the forced-reset function, where the trigger mechanism automatically resets forward after each shot, allowing the shooter to maintain a steady firing rhythm. Position three is a safe mode. This trigger is machined from billet steel and hardcoat anodized for durability. It is a direct replacement for the factory trigger pack in the HK MR223 and MR556, requiring no additional parts or fitting.

Features & Specs

• Three-position selector: safe, semi-automatic, and forced-reset mode
• Single-stage design with a 4.5 to 5.5 lb pull weight
• Drop-in installation; no permanent modifications to the firearm
• Constructed from billet steel with a MIL-SPEC hardcoat anodized finish
• Includes all necessary springs and pins for installation
• Manufacturer: Rare Breed | Category: Triggers

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is compatible with both the MR223 and MR556 variants. It does not alter the firearm’s original safety function or require any changes to the bolt carrier group. The forced-reset mechanism operates by using the firearm’s recoil impulse to physically push the trigger shoe forward, enabling a repetitive pull cycle without trigger manipulation between shots.

Who It’s For

This trigger is intended for experienced shooters who own an HK MR223 or MR556 and want an advanced trigger system that offers a unique shooting dynamic. It is suited for competition shooters looking to increase split times, firearms enthusiasts who train with high-volume drills, and collectors who want a documented, purpose-built trigger for their HK platform. The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is not recommended for novice shooters or for use in fully automatic host firearms. It is designed solely for the semi-automatic HK MR223 and MR556 rifles.

Shipping & FFL

• This product ships directly to your door within the contiguous United States
• No FFL transfer is required for purchase or delivery of this trigger component
• Standard lead time is 3 to 5 business days; expedited shipping available at checkout
• International shipping is not available for this item

Important FFL Transfer Disclaimer: The FRT-MR3™ is a firearm component, not a complete firearm. It does not require transfer through a Federal Firearms License (FFL) dealer. However, you must comply with all applicable federal, state, and local laws regarding the possession and installation of forced-reset trigger systems. Some jurisdictions may have restrictions on forced-reset triggers. It is your responsibility to verify legality in your location before purchasing. Rare Breed does not provide legal advice. By purchasing this product, you confirm that you are legally eligible to own and install this trigger.

• All sales are final on installed or modified trigger packs
• Warranty and return inquiries should be directed to Rare Breed directly
• This product is not returnable if the factory seal is broken