The FRT-RD3™ (SEF) is a mil-spec forced reset trigger designed for HK MP5, MP5K, SP5 & SP5K platforms. This drop-in trigger assembly features a 3-position selector (Safe/Semi/FRT®) with duty-grade components machined from 4140 steel. The precision-milled sear and nickel-boron coated hammer provide consistent 4.5-5.5 lb pull weights for rapid follow-up shots while maintaining reliability.
- 100% US-made with hardened tool steel pins
- Compatible with SEF grip frames
- No gunsmithing required for installation
- Tested to 50,000+ round count
Rare Breed Triggers delivers industry-leading forced reset mechanisms trusted by professional end users. Upgrade your HK roller-delayed blowback system with the FRT-RD3™ for enhanced control during rapid fire sequences. Complete your AR-15 FRT lower build with this combat-proven trigger group.
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