Description

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

For shooters who demand precision, speed, and reliability from their HK-pattern rifles, the FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 delivers a performance edge that is engineered for the hard-use environment. Manufactured by Rare Breed, a trusted name in advanced trigger systems, this drop-in unit transforms the standard HK MR223 and MR556 platform into a faster, more responsive tool for competitive shooters, tactical operators, and serious enthusiasts. Built on the proven forced-reset principle, the FRT-MR3™ offers a distinct mechanical advantage without compromising the safety or integrity of your firearm.

Overview

The FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 is a direct replacement trigger group designed specifically for the HK MR223 and MR556 rifles. Unlike conventional triggers, the forced-reset mechanism mechanically returns the trigger forward after each shot, enabling a rapid, consistent pull cycle that keeps your finger ready for the next engagement. The three-position selector provides safe, semi-automatic, and forced-reset modes, giving the shooter full control over the rifle’s firing characteristics. Rare Breed has engineered this unit to meet the demands of high-volume use while maintaining a crisp, predictable single-stage break.

Features & Specs

• Single-Stage Forced-Reset Design: The trigger employs a mechanical forced-reset action that returns the trigger shoe forward immediately after the hammer falls, allowing for faster follow-up shots without the need for a traditional reset travel.
• Three-Position Selector: Includes safe, semi-automatic, and forced-reset positions, clearly marked and tactile for rapid verification under stress.
• Drop-In Installation: No gunsmithing required. The FRT-MR3™ is a complete, pre-assembled trigger cassette that fits directly into the HK MR223 and MR556 lower receiver with minimal effort.
• Precision-Machined Components: Constructed from hardened steel and aerospace-grade aluminum, with a corrosion-resistant finish designed for extended service life in adverse conditions.
• Consistent Pull Weight: Factory-tuned to deliver a uniform, repeatable single-stage pull across all three positions, with no creep or over-travel in forced-reset mode.
• HK-Specific Geometry: Tailored exclusively for the MR223 and MR556 platforms, ensuring proper sear engagement and reliable function with factory and aftermarket components.

Who It’s For

This trigger is built for shooters who operate their HK MR223 or MR556 at a high tempo and require a system that keeps up with their cadence. It is ideal for 3-gun competitors, dynamic shooting sports participants, and tactical shooters who train for speed and accuracy. The FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 also appeals to collectors and enthusiasts who want to explore the capabilities of their HK-pattern rifle without permanent modification. If you are comfortable with advanced trigger mechanics and understand the responsibilities of operating a forced-reset system, this unit is a direct upgrade for your build.

• Competitive shooters seeking faster split times with a consistent trigger pull.
• Tactical trainers and professionals who run high-round-count drills.
• HK MR223 and MR556 owners who prefer a drop-in solution over custom gunsmithing.
• Enthusiasts who value mechanical innovation and platform-specific engineering.

Shipping & FFL

This trigger is a firearm component and is classified as a non-serialized parts kit by ATF guidelines. It ships directly to your doorstep with no FFL transfer required. However, local, state, and federal laws vary. It is your responsibility to ensure that the FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 is legal to own and install in your jurisdiction. We recommend consulting with a qualified firearms attorney before purchase if you are unsure of your local regulations. All orders are processed within one business day, and standard shipping is included on all domestic orders over a threshold amount. Expedited shipping options are available at checkout. Rare Breed backs this product with a limited manufacturer warranty covering defects in materials and workmanship. For warranty claims, contact our customer service team with proof of purchase and a description of the issue.

• Ships directly to your address; no FFL transfer required for this non-serialized trigger assembly.
• Buyer is solely responsible for compliance with all applicable laws regarding forced-reset trigger ownership.
• Standard domestic shipping included; expedited options available at additional cost.