Description

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

Overview

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 represents a precision-engineered trigger system designed specifically for these platforms. Manufactured by Rare Breed, this trigger redefines the shooter’s interface with the rifle by employing a forced-reset mechanism that returns the trigger forward immediately after each shot, enabling rapid follow-up shots while maintaining deliberate trigger control. Unlike standard triggers, the FRT-MR3™ provides three selectable positions: Safe, Semi-Automatic, and Forced Reset. This configuration allows the operator to choose the mode that best suits the tactical or training scenario. The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is built to withstand high-round-count use and is drop-in compatible with these specific HK models, requiring no permanent modification to the lower receiver.

Features & Specs

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 incorporates Rare Breed’s proprietary forced-reset technology. The single-stage design delivers a consistent, crisp break with a predictable reset cycle that is mechanically driven. The three-position selector provides intuitive operation familiar to AR-platform users. Below are the key specifications and features of this trigger system.

• Three-position selector: Safe (position 1), Semi-Automatic (position 2), Forced Reset (position 3)
• Single-stage trigger pull weight: factory-set at approximately 4.5-5.5 pounds with minimal overtravel
• Drop-in design for HK MR223 and HK MR556 lower receivers; includes all necessary pins and springs
• Manufactured from heat-treated steel and aerospace-grade aluminum components with a corrosion-resistant finish
• Compatible with standard HK MR223/MR556 bolt carrier groups and hammer designs

Who It’s For

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is intended for experienced shooters who require a reliable, repeatable forced-reset system for training, competition, or professional use. This trigger is not a novelty item; it is designed for operators who understand the mechanics of forced-reset systems and demand consistent performance under rapid fire. Whether you are a competitive shooter looking to improve split times, a firearms instructor demonstrating advanced trigger manipulation, or a collector building a purpose-configured HK MR556, this trigger provides a distinct mechanical advantage. The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is also suitable for those who prefer the single-stage feel over two-stage triggers and want the added capability of a third position without altering the rifle’s ergonomics.

Shipping & FFL

The FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is classified as a firearm component and is not itself a firearm. However, because it is designed to function as a trigger group, it must be shipped to a Federal Firearms License (FFL) holder in accordance with all applicable federal, state, and local laws. It is the buyer’s sole responsibility to verify that the FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 is legal to possess and install in their jurisdiction before placing an order. Some states and municipalities have specific restrictions on forced-reset triggers, and compliance with these laws is mandatory. By purchasing this product, you confirm that you are legally eligible to own it and that your receiving FFL dealer is willing to accept the transfer. We will ship only to a valid FFL holder on file. No returns or refunds will be issued for orders that cannot be completed due to local legal restrictions or FFL refusal.