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Reinventing Restraint: The Murphy AMPI Handcuff

news-date-icon Aug 28, 2025

A Leap Forward in Law Enforcement Safety

Reinventing Restraint: The Murphy AMPI Handcuff

For over a century, the standard swing-through handcuff design, dating back to 1912, remained virtually unchanged. BoldX Industries has shattered that status quo with the Murphy AMPI Handcuff, a modern reimagining that redefines what restraint technology can be.

What Makes It Exceptional?

Unpickable, Unshimmable, Unmatched

  • This handcuff sets a new benchmark by defeating traditional methods of escape, such as picking or shimming.

Patented Triple-Lock with Trident Key

  • Boasting an advanced locking mechanism, the triple-lock Trident key enhances security and fits a wide range of wrist sizes with precise interlock ratios.

Aircraft-Grade Aluminum Construction

  • Designed with strength in mind, the handcuff features durable materials that far exceed standard expectations for frame, swivel, and chain link resilience.

Engineered for Safety

  • Each detail has been carefully engineered to deliver dependable performance under pressure.

From Inspiration to Reality

This innovation didn’t happen overnight. Inspired by a tragic incident and guided by a promise to enhance safety, BoldX transformed a rough concept into a U.S.-manufactured, fully patented, field-tested design. The Murphy Handcuff represents the kind of industry-defining solution built at the intersection of purpose and precision.

Why It Matters?

Officer and Public Safety: By eliminating common failure points in handcuff design, the Murphy AMPI Handcuff helps reduce injuries and enhance control in critical moments.

A New Industry Standard: With unmatched security features and modern engineering, this cuff rises above its predecessors in both reliability and performance.

BoldX’s Innovator’s Edge: The development of this product exemplifies how BoldX brings real-world challenges to life with forward-thinking, results-driven engineering.

BoldX goes beyond part manufacturing to innovate solutions that matter. If you have a tough problem or idea that needs engineering, let’s build it boldly together.