The Rare Breed Triggers FRT-MR3™ (FLAT) is a drop-in, duty-grade forced reset trigger designed for HK MR223 and HK MR556 platforms, offering faster, consistent firing while staying legal.
The Rare Breed Triggers FRT-MR3™ (FLAT) is a single-stage, forced reset trigger compatible with the HK MR223 and HK MR556. This drop-in trigger system is designed for easy installation, fitting seamlessly into your build without requiring specialized tools. It includes ambidextrous 3-position safety bodies (A1 and A4 configurations) and anti-walk pins for secure setup. The FRT-MR3™ enhances performance by resetting the trigger after each shot, enabling faster follow-up shots while maintaining legal compliance—each trigger pull fires only one round. Made in the USA, this duty-grade component is ideal for shooters seeking improved speed and consistency on the range. Perfect for those looking to upgrade their HK platform, the FRT-MR3™ delivers reliable functionality and a smoother shooting experience.
