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Regular price $353.00 USD
Regular price $453.00 USD Sale price $353.00 USD
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**GENEROUS ADDITIONAL DISCOUNT WHEN YOU PAY WITH A US POSTAL MONEY ORDER OR A CHECK** Please email us at or call us at 800-470-9414 or 801-770-4466 for more information. This option is available only for USA customers and not available on our website.

ABOUT THE ONTOS: “ONTOS” – translated from Greek as “The Thing”. ONTOS  was developed to satisfy a request from Extrema Ratio customers wanting a quality, roust survival knife. Extrema Ratio listened and then created the ONTOS .  The ONTOS is excels when you need a strong knife suited for wilderness survival, hunting and camping.

BLADE: The blade has a durable coating that protects it from corrosion and makes it reflection proof. It has a specially designed serrated section on the upper part of the blade. Has a full tang and it terminates in an extension that provides a generous lanyard hole as well as acting as a window breaker or hammer. It is big, thick, and heavy, giving you the power you need for survival type activities.

HANDLE: The handle on the ONTOS  is made of Forprene and ergonomically designed to give you an excellent grip. Very lightly textured and has a “rubbery” feel to it.

SHEATH: The Extrema Ratio ONTOS  has a MOLLE compatible sheath. It is made of high-quality reinforced nylon. The sheath also has a thigh strap to provide stability.

Length of Knife: mm 299 (11.77 inches)
Blade Length: mm 168 (6.61 inches)
Total Length of Knife and Sheath: mm 318 (12.50 inches)
Weight of knife: g 411 (14.51 ounces)
Weight of Knife and Sheath g 615 (1 pound 5.7 ounces)
Blade Thickness: mm 6.3 (0.25 inches)
Blade Width (Widest Section): mm 44.45 (1.75 inches)
Blade Steel: Bohler N690 cobalt stainless steel*
Blade Hardness: Rockwell 58 HRC
Grinding: Flat
Serrations: Partial serrations on spine
Handle: Forprene**
Handle Length (Excluding Pommel): mm 122.85 (4.84 inches)
Sheath Material: Reinforced Nylon
MOLLE Compatible: Yes
Blade Coating: MIL-C-13924 black coating

Note: individual knives may vary slightly from the above measurements

* The blade is made with N690 cobalt stainless steel; a high performance steel with excellent cutting and sharpening characteristics. This steel is also used in the butchering industry and to make surgical instruments

** Forprene has extreme temperature and moisture resistance. Extrema Ratio has tested this material extensively
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