FRT-RD3™ (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K

Rare Breed brings advanced forced-reset technology to the roller-delayed platform with the FRT-RD3™ (Ambi) Two-Stage (3-Position) Forced Reset Trigger. Designed exclusively for the HK MP5, MP5K, SP5, and SP5K, this trigger delivers a distinct two-stage feel with a third-position forced-reset function. Precision-machined from billet steel and aluminum, the FRT-RD3™ maintains the safety and reliability required for duty, competition, and serious recreational use.

Overview

The FRT-RD3™ (Ambi) represents the next evolution in forced-reset trigger design for the HK roller-delayed system. Unlike standard triggers, this unit provides a true two-stage pull weight with a defined wall and a crisp break, followed by a mechanical forced reset that returns the trigger forward automatically. The ambidextrous selector allows right- and left-handed shooters to access three distinct positions: safe, semi-automatic, and forced-reset mode. Built to Rare Breed’s exacting tolerances, this trigger installs directly into the HK MP5, MP5K, SP5, and SP5K lower receivers without permanent modification.

For users seeking the frt-rd3™ (ambi) two-stage (3-position) forced reset trigger for the hk mp5, mp5k, sp5 & sp5k, this unit offers a drop-in upgrade that combines controlled accuracy with advanced cycling mechanics. The forced-reset mechanism is engineered to maintain positive sear engagement and consistent reset timing, ensuring reliable function across a wide range of ammunition types.

Features & Specs

• Two-stage trigger pull with a distinct take-up, a clean wall, and a crisp break; third position engages forced-reset mode for rapid follow-up shots
• Ambidextrous selector lever with three positions: safe, semi-automatic, and forced-reset; compatible with left- and right-handed shooters
• Drop-in design for HK MP5, MP5K, SP5, and SP5K platforms; no permanent modification to receiver required; uses factory hammer and trigger pins
• Billet steel hammer and trigger group with hardened engagement surfaces; aluminum housing with Type III hard-coat anodizing
• Manufacturer: Rare Breed; Category: Triggers; MPN: FRT-RD3-AMBI

Each FRT-RD3™ undergoes function testing before shipment. The forced-reset mechanism is calibrated to reset the trigger forward after each shot, allowing the shooter to maintain a consistent finger position without manually resetting the trigger. The two-stage design preserves the tactile feedback required for precision shooting while the third position enables a faster cycle rate when needed.

Who It’s For

This trigger is built for experienced shooters who own an HK MP5, MP5K, SP5, or SP5K and demand a higher level of trigger performance. It suits competitors who need rapid, controlled strings of fire without sacrificing accuracy, as well as enthusiasts who want to explore forced-reset technology on the roller-delayed platform. The ambidextrous controls make it equally effective for left-handed shooters who require a true symmetrical selector. Armorers and gunsmiths will appreciate the straightforward drop-in installation that requires no special tools beyond standard pin punches.

If you are looking for the frt-rd3™ (ambi) two-stage (3-position) forced reset trigger for the hk mp5, mp5k, sp5 & sp5k, this unit is designed to meet the demands of high-volume shooting sessions and training environments where reliability and trigger consistency are non-negotiable.

Shipping & FFL

This item is a firearm component and may be shipped directly to your residence in most states. However, because the FRT-RD3™ (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K may be regulated as a firearm part in certain jurisdictions, please verify your local, state, and federal laws before ordering. Some states and localities impose restrictions on forced-reset triggers, binary triggers, or trigger modifications. It is your responsibility to ensure compliance with all applicable laws.

We ship to all states where this product is legal for purchase. If your state requires an FFL transfer for this item, we must ship to a licensed federal firearms licensee (FFL) for processing. You are responsible for all transfer fees charged by the receiving FFL. We reserve the right to cancel any order that violates applicable law. No returns or exchanges on installed or modified trigger components.