Description
FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556
Overview
If you own an HK MR223 or MR556, you already know the platform demands precision components. The FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 is built by Rare Breed to deliver a distinct shooting experience that matches the rifle’s engineering. This is not a gimmick; it is a purpose-designed trigger system that lets you feel each shot cycle with tactile feedback. The three-position selector gives you standard semi-auto, a forced-reset mode, and a safe position. Whether you are running drills at the range or refining your trigger control, the FRT-MR3™ gives you a hands-on advantage without overcomplicating the platform.
Features & Specs
This trigger is machined specifically for the MR223 and MR556 lower receivers, so you get drop-in installation with no gunsmithing required. The single-stage design breaks cleanly, and the forced-reset mechanism resets the trigger forward as the bolt cycles, allowing you to maintain a consistent finger position. Below are the key specs and details you should know before ordering.
- Manufacturer: Rare Breed – Category: Triggers – designed exclusively for HK MR223 and MR556 platforms.
- Three-position selector: Safe, semi-auto, and forced-reset mode for versatile range use.
- Single-stage pull with a crisp break; no take-up creep in forced-reset mode.
- Heat-treated steel components with a corrosion-resistant finish for long service life.
- Includes all necessary pins and springs for direct installation into mil-spec lower receivers.
The FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 is built to handle the high-pressure cycling of these rifles while maintaining repeatable performance round after round.
Who It’s For
This trigger is for shooters who already own an HK MR223 or MR556 and want to explore a different trigger dynamic without sacrificing reliability. If you are comfortable with basic maintenance and understand your rifle’s operating system, the FRT-MR3™ is a natural upgrade. It suits competitive shooters looking to improve split times, hobbyists who enjoy tactile feedback, and anyone who appreciates Rare Breed’s engineering. The forced-reset mode requires deliberate trigger discipline, so it is best for experienced users who understand the mechanics of their firearm. This is not a beginner-level product; it is a tool for shooters who know what they want from their trigger system.
Shipping & FFL
Because the FRT-MR3™ single-stage (3-position) forced reset trigger for the HK MR223 & HK MR556 is a firearm component and not a complete firearm, it ships directly to your doorstep with no FFL transfer required. However, you are responsible for complying with all local, state, and federal laws regarding trigger installation and use. Some jurisdictions have specific restrictions on forced-reset triggers, and we do not assume liability for non-compliance. Before placing an order, verify that this product is legal in your area. If you have questions about your state’s regulations, consult a legal professional. We ship within the continental U.S. and provide tracking upon dispatch.
- No FFL transfer needed for delivery – ships to your residential or business address.
- Customer must confirm local legality before purchase; no returns for seized items.
- Standard shipping rates apply; expedited options available at checkout.





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