Microtech Dirac Delta OTF Automatic Knife Black Dagger/Cyan AUMT2251CN

The Microtech Dirac Delta OTF Automatic Knife Black Dagger/Cyan delivers serious performance in a bold, precision-built automatic platform. Designed for users who expect premium materials, flawless action, and unmistakable style, this out-the-front automatic stands out in both function and appearance.

The 3.75" double-edge dagger blade is crafted from Microtech’s proprietary Böhler M390MK stainless steel. Developed in collaboration with engineers at Böhler, M390MK builds on the legendary M390 formula to push edge retention and corrosion resistance even further. The result is a high-performance blade steel that holds a razor-sharp edge while standing up to demanding use. Finished with a durable black coating, the blade has a sleek, tactical look that also helps protect against wear and the elements.

Microtech’s precision-engineered out-the-front automatic mechanism delivers fast, reliable deployment and retraction with a thumb slide mounted on the handle’s face. The action is crisp and controlled, making the Dirac Delta a dependable tool when quick access matters. Its dagger profile provides exceptional piercing strength and symmetrical cutting edges suited for a variety of demanding tasks.

The handle is crafted from cyan anodized aircraft-grade aluminum, offering outstanding strength while keeping weight manageable for everyday carry. The vibrant cyan finish creates a striking contrast against the black blade, giving the knife a distinctive visual presence. An ambidextrous stainless steel pocket clip allows comfortable carry for both left- and right-handed users, while a built-in glass breaker tip adds emergency functionality.

Measuring 5.5" closed and weighing 4.55 ounces, the Dirac Delta offers a solid, well-balanced feel without becoming cumbersome in the pocket.

Proudly made in the USA, Microtech continues to set the benchmark for high-end automatic knives through precision machining and uncompromising quality.

Smoky Mountain Knife Works, the world’s best online knife store, stands as a true Tennessee landmark and the world’s largest knife store. Located in the heart of the Great Smoky Mountains, more than 1.5 million visitors walk through SMKW’s legendary showroom every year.