Quick answer

For a compact, smooth-grip self-defense spike, choose the Ring Cardiac Spike (3-inch blade, A2 steel, Micarta handle). For a longer, textured-grip utility blade, pick the OSS Spike (3.6-inch blade, 3V steel, G10 handle). Your choice hinges on blade length, steel toughness, and handle texture.

Blade length and steel composition trade-off

The OSS Spike’s .6-inch longer blade gives you more cutting edge for utility tasks such as slicing cordage or opening boxes. The Ring Cardiac Spike’s shorter 3-inch blade is easier to conceal and quicker to deploy in close-quarters defensive use.

Steel choice also matters: the Ring Cardiac Spike uses A2 American tool steel, known for toughness and ease of sharpening in the field. The OSS Spike uses 3V steel, which offers better edge retention and impact resistance for repeated hard use. Neither specification is inherently better—your typical tasks decide the winner.

Handle and grip differences

Both spikes use Allen bolts for assembly, but handle materials and texture diverge. The Ring Cardiac Spike has a black canvas Micarta handle with a smooth grip, providing a comfortable non-slip feel even when wet—ideal for a controlled self-defense grip. The OSS Spike uses grey G10 with a textured grip, giving you more traction during aggressive cutting or when wearing gloves.

If you prioritize a low-profile, smooth draw from a pocket, the Ring Cardiac Spike’s smooth Micarta works well. If you need maximum purchase during heavy cutting, the OSS Spike’s textured G10 is the better bet.

Trade-offs at a glance

  • Blade reach vs concealability: OSS Spike’s 3.6-inch blade offers more utility cutting edge; Ring Cardiac Spike’s 3-inch blade is easier to conceal and quicker to deploy for self-defense.
  • Steel toughness vs edge retention: Ring Cardiac Spike’s A2 steel is tough and easy to sharpen; OSS Spike’s 3V steel holds an edge longer and resists impact better. If you sharpen in the field often, A2 is forgiving. For heavy use without re-sharpening, 3V is stronger.
  • Handle texture for grip preference: Ring Cardiac Spike’s smooth Micarta is comfortable and non-slip when wet, ideal for draw from pocket. OSS Spike’s textured G10 gives more traction for heavy cutting or gloved hands.

Product facts at a glance

  • Ring Cardiac Spike - Black Canvas Micarta, Armor Black Cerakote, Allen Bolts, Smooth Grip: Ring Cardiac Spike features a 3-inch blade with .20-inch thickness, A2 steel, black canvas Micarta handle with smooth grip, and Armor Black Cerakote finish. The shorter blade and smooth Micarta handle suit concealed carry and controlled self-defense draws without snagging.

    Ring Cardiac Spike - Black Canvas Micarta, Armor Black Cerakote, Allen Bolts, Smooth Grip

    Ring Cardiac Spike - Black Canvas Micarta, Armor Black Cerakote, Allen Bolts, Smooth Grip

  • OSS Spike - Grey G10, Armor Black Cerakote, Allen Bolts, Textured Grip: OSS Spike has a 3.6-inch blade with .20-inch thickness, 3V steel, grey G10 handle with textured grip, and Armor Black Cerakote finish. Overall length is 8.2 inches. The longer blade and textured G10 handle provide extra cutting reach and secure grip for utility tasks and gloved use.

    OSS Spike - Grey G10, Armor Black Cerakote, Allen Bolts, Textured Grip

    OSS Spike - Grey G10, Armor Black Cerakote, Allen Bolts, Textured Grip

Which spike fits your carry?

Best for

  • Concealed self-defense and pocket carry (choose Ring Cardiac Spike)
  • Utility cutting with gloved hands or heavy use (choose OSS Spike)

Not for

  • Maximum edge retention in rough conditions (Ring Cardiac Spike’s A2 steel is less durable than 3V)
  • Ultra-compact pocket profile (OSS Spike’s longer blade and grip are harder to conceal)