Microtech Dirac Delta OTF Automatic Knife Tactical Blackout Partially Serrated D/E AUMT2252T

The Microtech Dirac Delta OTF Automatic Knife Tactical Blackout D/E is a bold example of Microtech’s precision engineering, combining aggressive styling with lightning-fast automatic performance. The Dirac line stands out immediately thanks to its clean, modern lines and distinctive profile. Its most unique feature is the actuator placement—rather than riding along the spine, the thumb slide sits on the face of the handle, giving you a natural thumb position and excellent control when deploying or retracting the blade.

This version features a 3.75" premium steel dagger blade with a rugged black coated finish and a partially serrated edge that adds extra versatility. The combination of a razor-sharp plain edge and aggressive serrations makes it capable of both clean slicing and powering through tougher materials like rope, webbing, and heavy cordage. The dual-edge dagger profile delivers outstanding piercing strength, while Microtech’s dual-action out-the-front mechanism launches the blade forward with authority and retracts it just as smoothly with the same thumb-slide control.

The handle is crafted from anodized black 6061-T6 aircraft-grade aluminum, delivering excellent strength without unnecessary weight. Its streamlined shape offers a secure, comfortable grip while maintaining the sleek tactical look that defines the blackout configuration. A stainless steel ambidextrous tip-down pocket clip provides reliable carry for right- or left-handed users, and the integrated glass breaker adds valuable emergency functionality. Measuring 5.5" closed and weighing 4.55 ounces, the Dirac Delta provides full-sized capability in a carry-friendly automatic platform.

Smoky Mountain Knife Works, the world’s best online knife store, stands as a true Tennessee landmark and the largest knife store on the planet. In the heart of the Great Smoky Mountains, SMKW’s legendary showroom draws more than 1.5 million visitors each year who come to experience the unmatched selection and deep knife heritage that built its reputation.