Description

Frt-Rd3™ (Sef) Two-Stage (3-Position) Forced Reset Trigger for the Hk MP5, MP5K, SP5 & SP5K

Rare Breed brings its proven engineering to the roller-delayed platform with the FRT-RD3™ (SEF) Two-Stage (3-Position) Forced Reset Trigger. Designed exclusively for the HK MP5, MP5K, SP5, and SP5K, this trigger upgrades your firearm with a three-position selector that delivers a true two-stage forced reset experience. Built for shooters who demand precision and speed, the FRT-RD3™ (SEF) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K offers a distinct mechanical advantage without compromising reliability.

Overview

The FRT-RD3™ (SEF) is a drop-in trigger system that replaces your factory trigger pack. It uses a forced-reset mechanism to cycle the trigger forward after each shot, enabling faster follow-up shots while maintaining semi-automatic legality. The three-position selector (Safe, Semi, Forced Reset) gives you immediate control over your firing mode. This trigger is machined from billet steel and aluminum, ensuring durability under sustained use. It is compatible with standard SEF trigger packs and requires no permanent modification to your firearm.

Features & Specs

• Three-position selector: Safe, Semi-Automatic, and Forced Reset (FRT) mode for versatile operation
• Two-stage trigger pull in Semi mode with a crisp break; single-stage forced reset action in FRT mode
• Drop-in design fits HK MP5, MP5K, SP5, and SP5K without gunsmithing; uses factory trigger housing and pins

Manufactured by Rare Breed, this trigger is built to military-grade standards. The FRT-RD3™ (SEF) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K undergoes rigorous testing to ensure consistent performance. The trigger reset in FRT mode is tactile and audible, giving the shooter a distinct feedback loop. All components are heat-treated and finished with a corrosion-resistant coating.

• Material: Machined billet steel and 7075 aluminum
• Selector markings: S-E-F (Safe, Semi, Forced Reset)
• Compatible with factory HK trigger packs and aftermarket SEF housing

Who It's For

This trigger is intended for experienced shooters who own a registered HK MP5, MP5K, SP5, or SP5K and want to maximize their firearm's rate of fire without converting to full-auto. It is ideal for competitive shooters, tactical trainers, and enthusiasts who understand forced reset trigger mechanics and can maintain proper trigger discipline. The FRT-RD3™ (SEF) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is not recommended for new shooters or those unfamiliar with forced reset systems. It is a performance upgrade for users who already know how to run their roller-delayed platform at speed.

• Requires a complete understanding of forced reset function and safe handling
• Not compatible with ambidextrous trigger packs or push-pin lower receivers
• Must be installed in a semi-automatic firearm only; no modifications to full-auto parts are permitted

Shipping & FFL

This product ships directly to your doorstep. However, because the FRT-RD3™ (SEF) Two-Stage (3-Position) Forced Reset Trigger for the HK MP5, MP5K, SP5 & SP5K is a fire control component, it may be subject to state and local regulations. You are responsible for verifying that this trigger is legal to own in your jurisdiction. Rare Breed and our retailer do not assume liability for compliance with local laws. No FFL transfer is required for the trigger itself unless your state mandates it. If you have any questions regarding legality in your area, consult a licensed attorney or your local firearms enforcement agency before ordering.