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

Overview

The FRT-RD3™ (Ambi) Two-Stage (3-Position) Forced Reset Trigger is a precision-engineered drop-in unit designed exclusively for the HK MP5, MP5K, SP5, and SP5K platforms. Manufactured by Rare Breed, this trigger system delivers a distinct forced-reset cycling mechanism that requires the shooter to maintain forward pressure on the trigger for each round, enabling rapid follow-up shots without altering the firearm’s semi-automatic classification. The ambidextrous safety selector and three-position functionality provide intuitive control for both right- and left-handed operators.

This FRT-RD3™ (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is built for shooters who demand reliability and performance. Each unit undergoes rigorous testing to ensure consistent reset and engagement across thousands of cycles, making it a trusted component for serious users.

Features & Specs

• Two-Stage Forced Reset Action: The trigger employs a two-stage take-up with a distinct wall, followed by a forced-reset mechanism that automatically returns the trigger forward after each shot, allowing for rapid, controlled fire.
• Ambidextrous Three-Position Safety: The included safety selector offers safe, semi-automatic, and a third position optimized for the forced-reset cycle. The ambi design accommodates both left- and right-handed shooters without modification.
• Drop-In Installation: Pre-assembled and ready for direct installation into HK MP5, MP5K, SP5, and SP5K lower receivers. No gunsmith fitting is required, though basic familiarity with trigger housing disassembly is recommended.
• Manufacturer: Rare Breed | Category: Triggers — Backed by Rare Breed’s reputation for compliance and performance in the forced-reset trigger market.

Who It’s For

This FRT-RD3™ (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is intended for experienced shooters who understand the mechanics of forced-reset triggers and are legally compliant with all federal, state, and local regulations. It is suited for range use, competitive shooting disciplines that allow such systems, and training scenarios where trigger control and speed are practiced. This trigger is not recommended for novice users or for any application where a standard single-stage trigger is preferred. Users must verify that the FRT-RD3™ is legal in their jurisdiction before purchase and installation.

• Owners of HK MP5, MP5K, SP5, or SP5K firearms seeking enhanced trigger functionality.
• Shooters familiar with forced-reset operation and maintenance.
• Individuals who prioritize reliability and repeatable performance in a semi-automatic platform.

Shipping & FFL

This trigger is classified as a firearm component and is not a complete firearm, firearm receiver, or frame. It ships directly to your doorstep without the need for an FFL transfer. However, the end user is solely responsible for ensuring compliance with all applicable laws. Some states and localities restrict the purchase, possession, or use of forced-reset triggers. It is your responsibility to check your local statutes before ordering. By purchasing this product, you certify that you are legally eligible to own it and that it is legal in your jurisdiction. Rare Breed and the retailer assume no liability for misuse or non-compliance.

• Standard shipping rates apply. Estimated delivery within 3-7 business days after order processing.
• No FFL required for this trigger under current federal regulations. Signature may be required upon delivery.
• Returns accepted within 30 days of purchase for unopened, unused items. Warranty inquiries should be directed to Rare Breed.