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

If you own a HK MP5, MP5K, SP5, or SP5K, you know that the stock trigger is functional but leaves room for improvement. The FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger from Rare Breed changes the game entirely. This is not just another drop-in trigger; it is a precision-engineered component designed to give you a faster, more consistent shooting experience without compromising control. Whether you are running drills, competing, or just enjoying a range day, this trigger delivers a distinct three-position selector that includes safe, semi-automatic, and forced reset modes. The ambidextrous design means left-handed shooters get the same crisp performance as right-handed users. Rare Breed has built a reputation for pushing boundaries, and the FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is a prime example of that commitment.

Overview

The FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger is a direct replacement for your factory trigger pack in HK roller-delayed blowback platforms. It replaces the standard single-stage pull with a two-stage break that gives you a distinct wall before the sear releases. In forced reset mode, the trigger mechanically resets forward after each shot, allowing for rapid follow-ups that stay on target. The ambidextrous selector is fully reversible and ships ready for both left and right-handed shooters. This is a complete drop-in assembly, meaning no gunsmithing is required if you are comfortable with basic disassembly. Rare Breed designed this specifically for the MP5, MP5K, SP5, and SP5K, so fitment is precise and reliable.

Features & Specs

This trigger is built around a two-stage, 3-position selector that gives you safe, semi, and forced reset modes. The forced reset function uses a patented mechanical linkage that pushes the trigger forward after each shot, resetting it faster than a traditional spring return. The entire assembly is CNC-machined from billet steel and hard-coat anodized for durability. Here are the key details:

• Three-position selector: Safe, Semi-Automatic, and Forced Reset (FRT) mode.
• Two-stage trigger pull: First stage take-up, then a crisp second stage break.
• Ambidextrous selector lever included, reversible for left or right-hand use.
• Drop-in fit for HK MP5, MP5K, SP5, and SP5K platforms.
• Manufacturer: Rare Breed. Category: Triggers.

The FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is designed for shooters who want a faster cyclic rate without modifying the firearm into a full-auto configuration. It retains all factory safety features and uses standard HK hammer and trigger pins.

Who It’s For

This trigger is for experienced shooters who already own an MP5, SP5, or similar roller-delayed platform and want to push its performance. It is ideal for competitive shooters in PCC divisions who need faster splits, as well as hobbyists who appreciate mechanical innovation. If you are comfortable with your firearm’s manual of arms and want a trigger that rewards proper technique, the FRT-RD3 (Ambi) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is a solid upgrade. It is also suited for collectors who want a unique, high-quality component that stands out from standard triggers. Because it is a forced reset design, it requires a deliberate trigger pull and release, so it is best for shooters who have already mastered basic marksmanship.

Shipping & FFL

This trigger is classified as a firearm component and ships directly to your door within the contiguous United States. No Federal Firearms License (FFL) transfer is required for this item, as it is not a firearm frame or receiver. However, you must comply with all local, state, and federal laws regarding trigger installation and use. Some states or municipalities may have restrictions on forced reset triggers. It is your responsibility to verify legality before purchasing. Rare Breed triggers are designed for use in semi-automatic firearms only and must not be used in any configuration that violates the National Firearms Act. If you have questions about compatibility or legal status, contact your local firearms attorney or law enforcement agency before ordering.