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Home› Shop› Fixed Blade Knife Extrema Ratio N.K.3 K BLACK 04.1000.0213/BLK
Extrema Ratio · Code 04.1000.0213/BLK

Fixed Blade Knife Extrema Ratio N.K.3 K BLACK 04.1000.0213/BLK

★★★★★ 4,8 147 reviews Heureka verified
The N.K.3 K BLACK is not just a tool – it is a statement of readiness, strength, and confidence in your gear. Every detail is designed to perform even in the most demanding situations. Whether you need it in the field, for everyday carry, or as a reliable companion in critical moments, this knife will not let you down. Bet on certainty. Bet on Extrema Ratio. Free shipping.
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Detailed product description

Fixed Blade Knife Extrema Ratio N.K.3 K BLACK 04.1000.0213/BLK

General description: The Extrema Ratio N.K.3 K Black is a compact, extremely durable tactical knife designed for demanding professionals as well as civilian users looking for a reliable everyday carry (EDC) tool. The N.K.3 model is based on the “neck knife” concept – a small knife worn around the neck – and despite its minimal dimensions, it offers exceptional ergonomics and effectiveness. The K (karambit) version features a ring at the end of the handle for better handling and retention when used for self-defense.

Specifications:

Finish: MIL-C-13924 Black (non-reflective black coating)

Sheath: Nylon, with the option to wear around the neck or MOLLE compatible

Key parameters

Overall length 172 mm
Blade length 70 mm
Weight 105 g
Steel Böhler N690 (tvrdost 58 HRC)
Handle eloxovaný aluminum + karambit prstenec
Blade thickness 6,3 mm
Blade shape Tanto

Key benefits

  • Exceptional strength and robustness thanks to the 6.3 mm thick blade
  • Tactical karambit design for an effective grip and self-defense
  • Top-tier Italian manufacturing – guaranteed quality and precise workmanship
  • The use of premium N690 steel ensures long edge life and corrosion resistance
  • Non-reflective black finish protects against glare and scratches
  • Can be worn around the neck, concealed under clothing
  • Use and purpose: An ideal choice for tactical use, military and police applications, self-defense, bushcraft, EDC, or as a collector’s piece. Thanks to the karambit ring, it offers a secure grip even in high-stress situations.
  • Comparison with other models: Compared to the Extrema Ratio N.K.1, the N.K.3 offers a longer blade and a ring for karambit grip, making it more versatile for defensive techniques. Compared to standard EDC knives, the N.K.3 offers significantly higher durability and a tactical design.
  • Advantages over the competition:
  • Model Blade thickness Blade shape Finish Ring Steel
  • Extrema Ratio N.K.3 6.3 mm Tanto MIL-C-13924 Black Yes N690
  • Böker Plus CID 3.7 mm Drop point Stonewashed No D2
  • CRKT Minimalist 2.6 mm Wharncliffe Bead blasted No 5Cr15Mo
  • V
  • Reasons to buy now:
  • Limited availability – Extrema Ratio models often sell out quickly
  • Premium quality from Italy – no compromise in workmanship
  • An ideal gift for any lover of tactical knives
  • Fast delivery and cash on delivery option
  • Authenticity and satisfaction guaranteed
  • Conclusion: The N.K.3 K BLACK is not just a tool – it is a statement of readiness, strength, and confidence in your gear. Every detail is designed to perform even in the most demanding situations. Whether you need it in the field, for everyday carry, or as a reliable companion in critical moments, this knife will not let you down. Bet on certainty. Bet on Extrema Ratio.

Customer reviews

All 147 reviews →
4,8
★★★★★
147 reviews · Heureka verified
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