Franklin Armory BFSIII HK-C1 Binary Trigger – Black

The Franklin Armory BFSIII HK-C1 is a three-position trigger designed for HK 91/93/94 and MP5-style platforms. In its binary position the trigger fires one round on the pull and one round on the release, reducing split times and supporting tighter groupings for competition or precision-oriented use. The unit includes an ambidextrous safety selector and is finished in black to match common service and sport configurations.

Key Specifications

• The trigger operates in 3 positions, including Safe, Semi, and Binary.
• In Binary mode it fires one round on pull and one round on release.
• The trigger pull is approximately 4.5 pounds.
• The safety is an ambidextrous selector for user convenience.
• This unit fits most HK 91, 93 and MP5 variants and clones, though some fitting may be required.
• The trigger housing, ejector, ejector pin, and ejector spring are not included.
• The finish color is Black.
• The frame material is Steel.
• The listed weight is 0.65 (as provided by manufacturer data).
• Country of origin is US.

The BFSIII HK-C1 is built for shooters who prioritize reduced split times and reliable ergonomics. Its ambidextrous selector and broad platform compatibility make it a practical upgrade for sport and precision applications; because installation can require fitting, professional gunsmithing and qualified training are recommended to ensure safe, reliable operation. The design focuses on mechanical performance and functional control for responsible users looking to refine trigger behavior on HK-style rifles.