The FRT MR3™ Forced Reset Trigger transforms the HK MR223 and HK MR556 platforms by introducing a precise, duty-grade trigger system that enhances speed and consistency while maintaining full legal compliance.
What you get
- Drop-in, 3-position trigger system (Safe/Semi/FRT)
- 3-position ambidextrous safety selector
- Anti-walk pins for secure installation
- Forced Reset mechanism for faster follow-up shots
- 100% manufactured and assembled in the USA
Build and finish
The FRT MR3™ is built to Rare Breed Triggers’ exacting standards, with precision tolerances and a robust finish that ensures durability under heavy use. The trigger system is designed to withstand the rigors of competitive shooting, tactical training, and extended range sessions without compromising performance.
Constructed from high-quality materials, the FRT MR3™ incorporates a forced reset mechanism that resets the trigger after each shot, enabling faster, more consistent firing. The ambidextrous safety selector and anti-walk pins are engineered for secure, hassle-free installation, making it a reliable upgrade for HK MR223 and HK MR556 owners.
Compatible platforms
- HK MR223
- HK MR556
Installation notes
Installation is straightforward, requiring no specialized tools or gunsmithing expertise. The drop-in design ensures a quick and secure fit, while the included anti-walk pins prevent any unintended movement during use.
For those building or upgrading Polymer80-based systems, the FRT MR3™ exemplifies the kind of modular, high-performance components that can elevate your platform to the next level. Its precision engineering and legal compliance make it an ideal choice for competitive shooters, tactical enthusiasts, and anyone looking to maximize their firearm’s potential.
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