The Microtech Dirac Delta 227-1T is a premium full-size out-the-front automatic knife that combines the innovative ergonomics of the Dirac platform with the size and capability of Microtech's largest OTF models. Featuring a tactical all-black configuration, premium M390 blade steel, and the distinctive top-mounted thumb slide, the Dirac Delta offers an exceptionally smooth deployment experience while delivering the uncompromising performance Microtech is known for.
At the center of the 227-1T is a double-edge dagger blade crafted from premium Böhler M390 stainless steel and finished with a durable black tactical coating. M390 is renowned for its outstanding edge retention, corrosion resistance, and wear resistance, making it one of the most respected premium blade steels available. The symmetrical dagger profile gives the knife its unmistakable appearance while showcasing Microtech's precision machining and finishing.
One of the defining features of the Dirac Delta is its top-mounted thumb slide, positioned on the face of the handle rather than along the side like most Microtech OTFs. Inspired by the HALO platform, this ergonomic design provides a natural thumb position and contributes to the exceptionally smooth, comfortable firing action that has made the Dirac series a favorite among Microtech enthusiasts. The large aircraft-grade aluminum handle features clean, flowing contours that fill the hand comfortably while maintaining excellent control during use.
The dual-action OTF mechanism provides fast, positive blade deployment and reliable retraction with Microtech's signature precision. A reversible pocket clip accommodates both right- and left-handed users, while the integrated glass breaker completes the knife's premium feature set.
Proudly made in the USA, the Microtech Dirac Delta 227-1T combines premium materials, innovative ergonomics, and Microtech's legendary automatic action into one of the finest full-size OTF knives available.
Microtech 227-1T Dirac Delta Key Features
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Böhler M390 Blade Steel – Exceptional edge retention, corrosion resistance, and toughness
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Black Tactical Blade Finish – Durable, low-reflective coating for a premium appearance
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Double-Edge Dagger Blade – Symmetrical design with classic Microtech styling
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Top-Mounted Thumb Slide – Unique ergonomic placement for smooth, comfortable operation
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Dual-Action OTF Automatic – Fast, reliable deployment and retraction
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Aircraft-Grade Aluminum Handle – Lightweight, durable, and precision machined
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HALO-Inspired Ergonomics – Comfortable grip with flowing handle contours
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Reversible Pocket Clip – Supports both right- and left-hand carry
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Integrated Glass Breaker – Additional emergency utility
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Made in the USA – Precision manufactured by Microtech Knives
Specifications
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Model: Dirac Delta
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Model Number: 227-1T
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Overall Length: 9.38"
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Blade Length: 3.79"
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Closed Length: 5.61"
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Weight: 4.8 oz
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Blade Material: Böhler M390 Stainless Steel
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Blade Style: Double Edge Dagger
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Blade Finish: Black Tactical
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Edge Type: Plain Edge
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Handle Material: Aircraft-Grade Aluminum
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Handle Color: Black
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Knife Type: Dual-Action OTF Automatic
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Opening Method: Top-Mounted Thumb Slide
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Pocket Clip: Reversible Tip-Down
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Glass Breaker: Integrated Tungsten Carbide
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Country of Origin: USA
The Microtech Dirac Delta 227-1T offers a unique combination of full-size capability, premium M390 blade steel, and Microtech's innovative top-mounted firing system. With its smooth action, ergonomic design, and tactical styling, it stands as one of the most refined and comfortable OTF automatic knives in the Microtech lineup.
