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Doug Ritter RSK Mk5K Neck Knife 1.75″ Black Blade, Molded GRN Sheath

$35.00 Include GST

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Model: DRMK5K

Doug Ritter’s RSK Mk5 (Ritter Survival Knife) is not a knife you would use all day for normal work tasks. But, based on Doug’s philosophy that “if it isn’t with you, it can’t save you,” it is compact and light enough to fit in almost any small personal survival kit or stash-away location, yet robust enough that it’s a knife you can bet your life on.

Doug is the founder of the Equipped To Survive website and an international authority on survival equipment. The RSK Mk5 is a collaborative effort based on Georgia knifemaker David White’s custom Shrewd Survival Knife, itself the result of collaboration with Dr. Andrew Osbourne.

Weighing in at less than an ounce, the skeletonized fixed blade sports a 1.75″ wide-chord drop-point blade with a high flat grind. The high-carbon steel blade has Doug’s preferred stonewashed finish for improved corrosion resistance.

The ergonomically curved handle provides a secure and comfortable two-finger grip while a nylon lanyard with cord-lock adds additional length which adjusts to fit your hand.

Use it to make fuzz sticks, construct shelter, gut a fish, dress game, or for self-defense. Whether it is wilderness or urban survival, the Mk5 will do its part to keep you alive and kicking.

Includes a custom-fitted glass-filled nylon sheath and a mint-size carrying tin along with Doug’s suggestions for building up your own personal survival kit.

About the Designer

When you need to survive, you want Doug — or one of his preferred tools —at your side. An internationally recognized authority on survival preparedness, he is Chairman of the Equipped to Survive Foundation, Inc. Doug doesn’t claim to be a custom knifemaker, but he knows what works — knives that maximize functionality and minimize everything else. He keeps this in mind when collaborating on blades like the CRKT RSK Survival Series.


  • Blade Length: 1.75″ (44.45 mm)
  • Overall Length: 3.81″ (96.77 mm)
  • Blade Thickness: 0.12″ (3.05 mm)
  • Blade Material: 3Cr13 Stainless Steel
  • Blade Hardness: 51-55 HRC
  • Blade Finish: Black
  • Blade Edge: Plain
  • Handle Material: 3Cr13 Stainless Steel
  • Sheath Material: Black GRN (Glass Reinforced Nylon)
  • Designer: Doug Ritter
  • Weight: 0.9 oz.