Description

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

When your platform demands performance that matches its pedigree, the FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 delivers the mechanical advantage you need. Engineered by Rare Breed, this trigger system is purpose-built for the HK MR223 and MR556 rifles, providing a 3-position selector that gives the operator decisive control over firing modes. Whether you are building a precision carbine or a duty-ready patrol rifle, this forced reset trigger transforms your HK platform into a more capable tool without compromising on reliability or safety.

Overview

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 represents a significant advancement in trigger technology for the HK-based platform. Unlike conventional triggers, the forced reset mechanism uses the bolt carrier’s forward motion to reset the trigger shoe, enabling a faster, more consistent reset cycle. The third position expands your engagement options while maintaining the crisp, single-stage pull that marksmanship demands. Rare Breed has designed this unit to drop directly into your HK MR223 or MR556 lower receiver with no permanent modifications required, ensuring your firearm retains its original functionality while gaining a significant upgrade in cyclic control.

Features & Specs

• 3-Position Selector: Safe, Semi-Automatic, and Forced Reset mode provide clear, tactile selector stops that allow the shooter to choose the appropriate setting for the scenario.
• Single-Stage Trigger Pull: A clean, consistent break with no take-up or creep, delivering a predictable trigger feel that supports accurate shot placement at speed.
• Drop-In Design: Precision-machined housing and components install directly into standard HK MR223 / MR556 lower receivers without fitting, drilling, or permanent alterations.

Additional specifications include a nickel-teflon coated trigger shoe for reduced friction and enhanced corrosion resistance, a hardened steel hammer and disconnector, and a reinforced sear engagement that withstands high-round-count schedules. The unit is manufactured in the United States by Rare Breed, a company known for producing triggers that meet stringent quality control standards for commercial and professional use. Each trigger is function-tested before packaging to ensure reliable operation under field conditions.

Who It’s For

This trigger is designed for the HK MR223 and MR556 owner who demands more from their rifle. It is ideal for competitive shooters who need to manage split times without sacrificing accuracy, law enforcement personnel who require a proven mechanical advantage in a duty carbine, and civilian enthusiasts who appreciate the engineering behind a forced reset system. If you own an HK MR223 or MR556 and want to upgrade your trigger without sending your firearm to a gunsmith, the FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is a direct, reliable solution. It is not suitable for firearms other than the specified HK models, as the trigger geometry is precisely matched to the HK lower receiver dimensions.

Shipping & FFL

This product ships directly to your door. No FFL transfer is required because the FRT-MR3 is classified as a firearm component and not a firearm receiver. However, you must comply with all federal, state, and local laws regarding the installation and use of this trigger. Some jurisdictions impose restrictions on forced reset triggers or three-position selectors. It is your responsibility to verify that possession and installation of the FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is legal in your location before placing an order. We reserve the right to cancel any order that violates applicable law. Standard shipping rates and lead times apply. For questions about compatibility or legal compliance, contact our customer service team prior to purchase.