Upgrade your PTR MP5 clone with the 3-Position SEF Selector for the FRT-RD3™. Designed specifically for Rare Breed Triggers’ forced reset trigger system, this selector ensures seamless compatibility with HK-style platforms. Built for durability, the selector barrel is 4140 steel heat-treated to 45 HRC, while the lever is anodized 7075 aluminum for corrosion resistance.
Key features:
- Direct drop-in fit for PTR MP5 clones using FRT-RD3 triggers
- Precision-machined SEF markings (Safe, Einzelfeuer, Feuerstoß)
- Includes 1/16″ and 3/32″ Allen keys for installation
- Made in USA with mil-spec materials
Rare Breed Triggers delivers proven performance for HK clone platforms. Complete your MP5 FRT build with this factory-direct upgrade.




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