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

The FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 and HK MR556 is a precision-engineered drop-in unit from Rare Breed. Designed exclusively for the HK MR223 and MR556 platform, this trigger delivers a distinct three-position selector with a forced-reset function that returns the trigger forward immediately after each shot. This allows for rapid, controlled follow-up shots without modifying the firearm’s internal operating system. Each unit is built to MIL-spec dimensions and requires no gunsmithing for installation.

Overview

Rare Breed developed the FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 and HK MR556 to meet the demands of shooters who require speed and reliability in a single-stage trigger package. The flat trigger shoe provides a consistent, linear pull with a clean break, while the forced-reset mechanism mechanically resets the trigger forward as the bolt carrier cycles. The three-position selector includes Safe, Semi-Automatic, and the forced-reset mode, giving the operator full control over firing rate. This trigger is a direct replacement for the factory trigger group in the HK MR223 and MR556 rifles, with no additional parts or modifications required.

Features and Specs

• Single-stage trigger with forced-reset function: mechanically resets trigger forward during the cycle of operation, enabling rapid follow-up shots
• Flat trigger shoe design: provides a consistent, straight-back pull for improved accuracy and reduced trigger finger fatigue
• Three-position selector: Safe, Semi-Automatic, and forced-reset mode, clearly marked for unambiguous operation
• Drop-in installation: fits standard mil-spec trigger pocket dimensions of the HK MR223 and MR556; no fitting or gunsmithing required
• All-steel construction with hardened internal components: rated for extended service life under high-round-count use
• Manufacturer: Rare Breed; Category: Triggers

Who It Is For

The FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 and HK MR556 is intended for experienced shooters who own an HK MR223 or MR556 rifle and want a trigger that delivers a faster cycling rate than a standard semi-automatic trigger. This product is suitable for competitive shooters in divisions that permit forced-reset triggers, as well as for collectors and enthusiasts who seek enhanced performance from their HK-platform rifles. It is not designed for novice shooters or for use in firearms not specifically listed as compatible. Users should verify their state and local laws before purchasing, as forced-reset trigger regulations vary by jurisdiction.

Shipping and FFL

This trigger is classified as a firearm component and does not require transfer through a Federal Firearms License (FFL) dealer for shipment within the United States. Rare Breed ships directly to the purchaser’s address. However, some states and local jurisdictions impose restrictions on the sale, possession, or use of forced-reset triggers. It is the buyer’s sole responsibility to confirm that the FRT-MR3 (Flat) Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 and HK MR556 is legal to own in their specific location. By placing an order, the buyer certifies compliance with all applicable federal, state, and local laws. Rare Breed and this retailer disclaim any liability for non-compliance. If you have questions regarding legal status in your area, consult with a qualified attorney before purchasing.