Military Armament Corporation (MAC) has announced a significant advancement to their acclaimed MAC-5 pistol lineup, introducing variants equipped with the sophisticated Franklin Armory Binary Trigger system (BFSIII® HK-C1). This enhanced trigger mechanism transforms the shooting dynamics of the MAC-5 platform, offering users increased versatility for both competitive shooting and tactical applications.

Revolutionary Binary Trigger System
The integration of the Franklin Armory Binary Trigger represents a substantial upgrade to the MAC-5's operational capabilities. This advanced three-position trigger system provides shooters with multiple firing modes, including a unique binary function that delivers exceptional performance characteristics.
Binary Trigger Operation:
- Position 1 & 2: Standard semi-automatic operation
- Position 3: Binary mode - fires one round on trigger pull and one round on trigger release
This innovative firing mechanism significantly enhances the MAC-5's utility for tactical scenarios and competitive shooting disciplines, where rapid, controlled fire is essential for optimal performance.
Engineering Excellence: Modern Manufacturing Meets Classic Design
The MAC-5 series benefits from Military Armament Corporation's extensive experience in firearms development, combined with contemporary manufacturing techniques and precision tooling. This approach has resulted in pistols that maintain the authentic characteristics of their legendary predecessors while achieving a price point accessible to a broad range of shooters.

The platform's design philosophy emphasizes compatibility and modularity, with the 9mm pistols engineered to accept HK® components and most aftermarket accessories designed for MP5 variants. Additionally, MAC is developing a comprehensive line of proprietary accessories to further expand customization options.
Technical Specifications and Model Variants
MAC-5 Standard Model
- Barrel length: 8.9 inches
- Overall length: 17.9 inches
- Weight: 5.5 pounds (unloaded)
- Caliber: 9x19mm
- Operating system: Roller-locked mechanism
MAC-5K Compact Model
- Barrel length: 5.8 inches
- Overall length: 13.7 inches
- Weight: 4.6 pounds (unloaded)
- Caliber: 9x19mm
- Operating system: Roller-locked mechanism
Performance Advantages
The binary trigger configuration delivers measurable improvements in shooting performance, particularly in reducing split times between successive rounds. This enhanced timing capability enables shooters to achieve tighter shot groupings and improved overall accuracy, making the platform particularly well-suited for competitive applications where precision and speed are paramount.
Complete Package and Support
Each MAC-5 binary trigger variant ships as a comprehensive system, including essential accessories for immediate deployment:
Included Components:
- Two 30-round magazines
- Flash hider
- Carrying sling
- Protective hard case
- MAC limited lifetime warranty coverage
Customization and Accessories
Military Armament Corporation plans to launch a full spectrum of accessories through their official website, enabling customers to configure their MAC-5 pistols according to specific operational requirements or personal preferences. This modular approach ensures that each firearm can be tailored to meet individual mission profiles and shooting disciplines.
The introduction of these binary trigger variants demonstrates MAC's commitment to innovation while honoring the proven design principles that have made the MAC-5 series a respected choice among firearms enthusiasts and professionals alike.