Description
As soon as you pick up the Microtech Dirac Delta® D/E OTF 227-10APNC – Natural Clear Aluminum / Apocalyptic M390, you immediately feel the combination of technical precision and raw aesthetics. This model is a larger and more powerful version of Dirac’s first side-shift DAC OTF platform, now in an attractive Natural Clear Aluminum finish with Apocalyptic blade finish.
Designed by Anthony (Tony) Marfion and 100% made and assembled in the USA.
🔥 Character and philosophy
The Dirac Delta® is a modern interpretation of the tactical OTF knife with an emphasis on ergonomics and speed. The side-mounted, recessed slider allows for more natural thumb support and more comfortable handling compared to traditional top sliders.
The model operates in D/A (Double Action) mode – the blade is extended and retracted with one movement of the thumb. The mechanism is extremely fast, but at the same time requires controlled pressure to overcome spring resistance, which contributes to safety.
The overall length of about 235 mm makes it a full-featured tactical tool that remains well-carried as an EDC.
🏭 About the producer
Microtech Knives is an American brand with more than 30 years of history in the production of high-end automatic knives. Typical features are:
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Precision CNC machining
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Patented fasteners
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Innovative internal mechanisms
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Integrated glass breaker
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Consistent quality control
Each piece is manufactured and assembled in the USA under the direction of Anthony Marfione.
🗡️ Blade – D/E Dagger with Apocalyptic finish
The D/E (Double Edge) Dagger blade is symmetrically ground on both sides with a distinctive central rib for increased strength. Long longitudinal grooves increase structural stability and accentuate the aggressive appearance.
The Apocalyptic finish gives the blade a raw, “battle-worn” look while helping to mask minor signs of use.
The high flat cut ensures:
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excellent cutting properties
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high penetration
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tip strength
🔬 Steel – Böhler M390
The steel used is Böhler M390 powdered martensitic stainless steel of premium grade:
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approx. 20 % chromium
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approx. 1,9 % carbon
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approx. 4 % vanadium
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hardness approximately 59-61 HRC
It is characterized by:
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extreme wear resistance
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high corrosion resistance
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long blade retention
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minimal maintenance
It is one of the most respected steels in modern cutlery production.
🧩 Handle – Natural Clear Aluminum
The handle is made of anodised 6061-T6 aluminium in Natural Clear Aluminum for a clean, technical and elegant look.
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3D CNC milled anti-slip texture
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Jimping on the top and bottom of the handle
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Recessed side slider for natural control
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Slim profile suitable for EDC
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Deep carry clip (right/left, tip-down)
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Clip with logo, serial number and date of manufacture
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Glass breaker with tungsten carbide ball
⚙️ Technical specifications
| Parameter | Value |
|---|---|
| Model | Dirac Delta® D/E OTF |
| Product number | 227-10APNC |
| Total length | approx. 235 mm |
| Blade length | approx. 95 mm |
| Blade thickness | approx. 3.0 mm |
| Handle length | approx. 140 mm |
| Handle thickness | approx. 12.7 mm |
| Weight | approx. 129 g |
| Blade material | Böhler M390 |
| Hardness | approx. 59-61 HRC |
| Clipping | Flat |
| Blade surface | Apocalyptic |
| Handle material | 6061-T6 aluminium |
| Handle colour | Natural Clear |
| Mechanism | D/A OTF – Slide Lock |
| Opening | Automatic – push/pull slider |
| Clip | Right/left, tip-down |
| Designer | Anthony Marfione |
| Country of origin | USA |
✅ Main benefits
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Extremely fast D/A OTF mechanism
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Symmetrical D/E blade with high penetration
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Premium steel M390
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Apocalyptic surface masking signs of use
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Ergonomic side slider
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Lightweight but strong aluminium construction
⚠️ Possible restrictions
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Double edge is not ideal for all common tasks
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Automatic mechanism requires regular maintenance
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Higher price category corresponding to premium workmanship
🛠️ Maintenance and care
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Clean and dry the blade after use to preserve its longevity
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Keep the handle dry and clean, especially after contact with moisture
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For longer storage, lightly lubricate the blade with protective oil
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For sharpening blades, we recommend the Spyderco Tri-Angle Sharpmaker Complete Sharpening System 204MF – also ideal for smooth blades. 🛒 Buy on our website Moskito.cz
Regular care ensures long-term reliability and maximum performance.
🎯 Recommended for
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Demanding EDC users
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Professional tactical use
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Collectors of premium Microtech models
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Users who prefer symmetrical D/E geometry
⭐ Final rating
The Microtech Dirac Delta® D/E 227-10APNC combines modern ergonomics, an aggressive symmetrical blade and premium M390 steel with a unique Apocalyptic look. The result is a technically advanced, fast and visually striking OTF knife for those who want performance and style without compromise 🔪🔥












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