Tactical

MK2.1 BLACK

Name: MK2.1 BLACK
Brand: Extrema Ratio
SKU: 04.1000.0128
Price: 352.46 EUR
Availability: InStock

€352.46

A classic revisited, a tribute to a war veteran: MK2.1 is the restyling of the MARK 2 fighting dagger, one of the most widespread knives in World War II. Our aim with such an ambitious design project was to retain the characteristic qualities of the original, while only introducing those changes we deemed strictly functional to its improved effectiveness.

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Handle

BLACK
DESERT WARFARE

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Description

The blade is cobalt steel, with AISI 303 and AISI 304 employed for other parts, and glass-fiber-strengthened nylon replaced leather on the grip.

It retains the ergonomics of the original Mark 2 while all structural parts have been oversized to obtain a sturdy and high-performance multipurpose knife. The most significant changes are aimed at fixing the known “weak spots” of the parent knife: these include toolless in-the-field disassembly ability, a straightened modified Bowie profile making for easier edge maintenance, and barrel-shaped grooves on the hilt which both help user properly orient the blade in the dark and improve user’s grip in twisting movements (“screwdriver” effect).

Minor additions include safety-cord holes in the tang and pole-mounting holes on the front guard. Our usual Extrema Ratio “side groove” replaced the traditional blood-groove fuller for improved looks and reduced weight. Includes a standard thigh sheath with automatic retention mechanism and protective flap.

Available versions: MK2.1 BLACK, MK2.1 DESERT WARFARE.

Use

PROFESSIONAL OPERATIONAL DEPLOYMENT

Extrema Ratio develops knives engineered for real-world applications, where control, precision, and reliability are essential requirements. Every model is designed to ensure stable ergonomics, proper balance, and consistent performance, even during prolonged use. Use the tool strictly according to its technical function, avoiding improper use or stress beyond its intended scope. Mindful use preserves safety, efficiency, and longevity, keeping structural and operational characteristics of the product intact.

Want more details? Check the complete guide.

Care

ESSENTIAL ROUTINE MAINTENANCE

Regular maintenance is fundamental to preserving the efficiency, reliability, and lifespan of your product. After each use – especially in the presence of salt water, humidity, mud, or grease residues – rinse with fresh water, dry thoroughly, and apply a suitable lubricant to metal parts and moving mechanisms. Periodically inspect the inside of the sheath, removing sand, dust, or abrasive particles that could damage the blade finish when sheathing or unsheathing.

Want more information? Check the complete guide.

Warranty

OFFICIAL ASSISTANCE AND WARRANTY

Extrema Ratio knives are covered by a lifetime warranty covering defects in workmanship, materials, or treatments that compromise functionality. Sheaths are guaranteed for two years from the first documented purchase. Upon verification of a recognized defect, the product will be professionally repaired. If non-restorable, the tool will be replaced with an identical new product. Should the specific model be unavailable, it will be replaced with the most similar product in terms of technical features and overall value to ensure your complete satisfaction.

Want more details? Read our warranty information.