Microtech Scarab II Gen III S/E Knife Tan Aluminum, Apocalyptic M390MK by Tony Marfione (1278-10APTA)

Microtech Scarab II Gen III S/E Tan Aluminum, Apocalyptic M390MK by Tony Marfione (1278-10APTA) – full-size tactical-class OTF automatic knife

The Microtech Scarab II Gen III S/E Tan Aluminum, Apocalyptic M390MK by Tony Marfione (1278-10APTA) is a full-size OTF automatic knife featuring the D/A system, designed as one of the most robust constructions in Microtech’s lineup. This model builds on the Scarab II concept, combining a large blade, tactical ergonomics, and mechanics built for heavy-duty use. The blade, made of Böhler M390MK steel, with an S/E Drop Point profile, a flat grind, and an Apocalyptic finish, creates a configuration focused on effective cutting, stable tip control, and high durability. The handle, made of 6061 -T6 aluminum / 3M Traction Tape Inlay in Tan ensures a very secure grip, while the automatic OTF mechanism with a dual spring system, Thumb Slide, right/left clip, tip-down orientation, and glass breaker reinforce the practical and tactical character of the Scarab II Gen III model.

Böhler M390MK – Microtech powder steel for demanding use

Böhler M390MK is a high-performance powder steel developed for Microtech in collaboration with Böhler, designed with a focus on wear and corrosion resistance and long-lasting sharpness. In the Scarab II Gen III model, this material performs well when cutting straps, cords, tapes, cardboard, plastics, and technical materials, where edge stability and predictable blade performance are essential. The Apocalyptic finish gives the blade a rugged, slightly weathered look and helps mask minor marks that develop during regular use.

S/E Drop Point and flat grind – robust geometry for cutting control

The S/E Drop Point profile combines a durable tip with a functional edge line, making it well-suited for tasks requiring both cutting and precise blade control. The flat grind facilitates smooth gliding of the blade through material, maintaining a favorable balance between cutting efficiency and structural strength. Full-length grooves on both sides of the blade enhance the model’s technical appearance and emphasize its purpose as a large, task-oriented OTF automatic knife.

Dual OTF and Thumb Slide Mechanism – Power, Speed, and Control

The Scarab II Gen III utilizes a D/A OTF automatic mechanism, which allows the blade to be extended and retracted using the same Thumb Slide. This generation features a dual spring system, increasing the mechanism’s power and reliability while improving smoothness of operation compared to older designs. The knurled slide with a distinctive “X” pattern in the center requires deliberate pressure, which enhances safety and reduces the risk of accidental activation. The design allows for comfortable operation with both the right and left hand.

Tan Aluminum and 3M Traction Tape Inlay – a secure grip in challenging conditions

The handle, made of 6061-T6 Aluminum / 3M Traction Tape Inlay, is designed for maximum grip control. The aluminum body provides high rigidity, and the 3M Traction Tape Inlay with its aggressive texture significantly increases hand grip, even when working with gloves or in less stable conditions. The Tan finish gives the design a tactical, utilitarian character, and the jimping on the spine and belly support grip stability. The right/left deep carry clip, tip-down, allows for discreet carrying, and the glass breaker with a tungsten carbide ball expands the knife’s functionality in emergency situations.

Why choose the Microtech Scarab II Gen III S/E Tan Aluminum?

The Microtech Scarab II Gen III S/E Tan Aluminum is designed for users who expect a large, sturdy OTF automatic knife with smooth operation, a secure handle, and premium materials. The Böhler M390MK steel ensures long-lasting edge performance, the S/E Drop Point profile supports versatile applications, and the D/A OTF mechanism allows for quick one-handed deployment and retraction of the blade. The handle, made of 6061-T6 aluminum with 3M Traction Tape Inlay inserts, provides a secure grip; the right/left-hand clip and tip-down orientation allow for customizable carrying styles; and the glass breaker enhances the model’s utility beyond typical EDC tasks. This is an advanced OTF automatic knife for those who value reliability, robust mechanics, and Microtech’s distinctive styling.

Key features at a glance

• Böhler M390MK — high-performance powder-coated steel.
• S/E Drop Point — functional geometry with a strong tip.
• Flat grind — effective blade glide through material.
• Apocalyptic — a rugged finish that hides minor imperfections.
• D/A OTF — automatic blade deployment and retraction via a slider.
• 3M Traction Tape Inlay — an aggressive texture that improves grip.

Technical Data

Frequently Asked Questions

How do I care for and sharpen the Böhler M390MK steel in the Scarab II Gen III model?

Böhler M390MK steel should be cleaned and dried after use, especially after contact with moisture, sweat, or debris from cut materials. A diamond sharpener or a high-quality ceramic system works best for sharpening, as powder steel with high wear resistance requires an effective abrasive and a stable angle.

How does the D/A OTF mechanism work in the Microtech Scarab II?

The D/A OTF mechanism allows the blade to be extended and retracted by sliding the same Thumb Slide. The blade moves forward and backward along the handle axis, so the knife can be operated with one hand without the need for a classic side-to-side opening motion.

What makes the S/E Drop Point profile stand out?

The S/E Drop Point provides a durable tip, good cutting control, and versatile utility. This profile works well for cutting cardboard, straps, cords, tapes, and technical materials.

What does the 3M Traction Tape Inlay offer?

3M Traction Tape Inlay is an inlay with an aggressive, non-slip texture that improves grip stability. It makes it easier to control a large OTF knife during heavy-duty work, even when wearing gloves or in less stable conditions.

Does the Microtech Scarab II Gen III have a glass breaker?

Yes, the handle features a glass breaker with a tungsten carbide ball. This is a structural element of the knife that expands its functionality in emergency situations, but it is not listed as a separate accessory in the technical data.

Prepared by: Specialists at Sharg® company – Your expert in EDC and cutting tools