The FRT-MR3™ Single-Stage Forced Reset Trigger is designed for the HK MR223 and HK MR556, offering enhanced performance and reliability. This duty-grade trigger features a 3-position system (Safe/Semi/FRT®) and is manufactured entirely in the USA. The FRT-MR3™ includes a 3-position ambidextrous safety selector and anti-walk pins, ensuring secure and hassle-free installation.
Rare Breed Triggers is known for producing high-quality, performance-driven firearm components trusted by shooters nationwide. The FRT-MR3™ accelerates follow-up shots while maintaining precision and control, making it an ideal upgrade for your HK MR223 or HK MR556.
Ready to ship today from US inventory, the FRT-MR3™ comes with everything you need for installation, including:
- 1 x FRT-MR3 Trigger
- 2 x Anti-Walk Pins
- 4 x Anti-Walk Pin Screws
- 1 x A1 Selector Drum
- 1 x A4 Selector Drum
- 2 x Selector Lever Roll Pins
- 2 x T10 Torx Screws
Upgrade your firearm today with the FRT-MR3™, available now and ready to ship.




















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