- ARK H-2 Plain - knife ARK, designed for personal defense (Personal Defense Knife) by US Army veteran John Shirley. This lightweight and flat knife with a full tang construction with a fixed blade is made of H-1 steel resistant to moisture and rust.

This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
ARK H-2 Plain, specially designed for personal defense (Personal Defense Knife) by US Army combat veteran John Shirley's ARK (Always Ready Knife). This lightweight and extremely slim knife with a fixed blade of full tang construction is made of completely moisture- and rust-resistant innovative H-1 steel.
While on a mission in Afghanistan, Shirley learned of the huge number of U.S. personnel who were victims of sexual assault, mostly while bathing. Using his knowledge of martial arts, he designed an extremely effective Neck Knife designed for self-defense. Compact dimensions, low weight and a flat sheath suitable for hanging around the neck allow you to have it with you at all times!
H-2 - improved austenitic stainless knife steel is the successor to H-1 steel, produced by Japanese steel foundry Myodo Foundry. High-chromium, low-carbon (rolled without heat treatment) stainless steel contains 13.73% chromium, 0.09% carbon, 0.17% copper and 0.06% nitrogen. The knife can stay in fresh water as well as sea water, and will not rust even when left wet after use. The result was achieved by adding chromium and nickel to the steel, and replacing some of the carbon with nitrogen. All internal parts of the steel have undergone special treatment, making them resistant to rust and salt.
Blade - 2 mm thick with an aggressive deeply curved Clip Point profile. The curved cutting edge has an impressive efficiency of inflicting cuts despite the compact size of the wedge. The Plain smooth blade is derived with a low concave grind (Hollow grind). The round SpyderHole cutout increased the thumb support hump - ramp - on the back, allowing efficient knife handling.
Handle - covered with non-slip bi-directional textured grips (Bi-Directional Texturing) strengthening the grip even with wet hands. Made of FRN (Fiberglass Reinforced Nylon), a fiberglass-reinforced nylon plastic. In the back of the Handle an enlarged hole (lanyard hole) for the cord.
Sheath - made of hardened Kydex polymer protects the knife from falling out. Holsters and cases made of it are characterized by resistance to scratches and chemicals. It comes with a ball chain that allows you to hang the sheath with the knife around your neck.
Technical data:
Product number: FB35PBK
Name: ARK FRN Black H2 PlainEdge
Type of steel: H-2
Blade length: 65.0 mm / 2.56"
Blade thickness: 2.0 mm / 0.08"
Overall length: 126.0 mm / 4.98"
Weight: 26.0 g / 0.9 oz
Cutting edge type: Plain (smooth)
Grind Type: Hollow Grind (concave)
Handle material: FRN
Case: Polymer
Country of origin: Japan
Manufacturer: Spyderco, U.S.A.
Developed by: Sharg®