Description

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

Designed and manufactured by Rare Breed, the FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger delivers a purpose-built upgrade for HK-pattern roller-delayed firearms. Engineered specifically for the MP5, MP5K, SP5, and SP5K platforms, this trigger system introduces a three-position selector with a forced-reset mechanism that redefines semi-automatic performance. The ambidextrous design ensures full left- and right-handed operability without compromising reliability or legal compliance.

Overview

The FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is a drop-in replacement unit that upgrades your factory trigger group with a patented forced-reset action. This system features three distinct selector positions: Safe, Semi-Automatic, and Forced Reset. In the forced-reset position, the trigger mechanically resets forward after each shot, enabling rapid follow-up shots while remaining a legal semi-automatic configuration. The two-stage pull weight is tuned for precision and speed, with a crisp first-stage break and a short, positive reset. Rare Breed’s proprietary engineering ensures compatibility with both standard MP5 variants and civilian SP5/SP5K models without permanent modification to the host firearm.

Features & Specs

• Three-position selector: Safe, Semi, and Forced Reset (FR) mode for optimized rate of fire control
• Fully ambidextrous design with mirrored left- and right-side selector levers for all shooters
• Drop-in installation with no permanent modification required to HK MP5, MP5K, SP5, or SP5K lower receivers
• Two-stage trigger mechanism with a smooth first-stage take-up and a defined second-stage break
• Manufactured from heat-treated steel and precision-machined aluminum components for long-term durability
• Exclusive forced-reset technology that actively pushes the trigger forward after each cycle

Who It’s For

This trigger system is built for HK-platform owners who demand maximum performance from their roller-delayed firearms. Whether you are a competitive shooter looking to reduce split times, a tactical operator requiring ambidextrous control, or a collector seeking to modernize your SP5 or SP5K, the FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K provides an immediate upgrade. It is also ideal for range enthusiasts who want to experience forced-reset technology in a legal, drop-in package without the need for specialized gunsmithing. Law enforcement and security professionals will appreciate the ambidextrous selector and consistent two-stage pull under high-stress conditions.

Shipping & FFL

This item is classified as a firearm trigger and does not constitute a complete firearm. It ships directly to your address with standard shipping rates. However, because it is an internal fire-control component, some state and local jurisdictions may impose additional restrictions. You are responsible for verifying compliance with all applicable laws before ordering. An FFL transfer is not required for this product, but Rare Breed and this retailer reserve the right to request a copy of your FFL for verification if deemed necessary by state regulations. All sales are final once the package leaves our facility. By purchasing the FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K, you confirm that you are legally eligible to own this component and will use it in compliance with all federal, state, and local firearms laws.