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Cold Steel 21S Spartan Folding Kopis 4-1/2" Stonewashed Blade, Grivory Handles

Customer Reviews 4.605 Read 124 reviewsWrite a Review
Part Number: CS21S
Manufacturer: Cold Steel Knives
Retail Price: $114.99
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CS21S: Spartan
Cold Steel

The word Spartan conjures up the vivid history of the battle of Thermopylae, a story of enormous courage in the face of devastating odds. The Spartans were a tough breed, trained from childhood in the art of war and inured to most privations, both mental and physical. Engaging them at close quarters was something to be feared and avoided, as their famous Kopis swords struck off arms and legs like a scythe in a wheat field! Designed by Andrew Demko, the Cold Steel Spartan is a folding Kopis scaled down to accommodate the demands of a tamer, more sophisticated world. The 4 1/2" blade evokes the classic Kopis of the ancients with its characteristic recurved edge, big belly and sharp, acute point. It’s hollow ground from Japanese AUS 8A stainless and has some similarities with a Kukri. Like the Kukri, the Spartan always presents its edge at an angle to the material being cut to produce a deep sheering effect. However, since its point is narrower and more acute than most Kukri blades, it stabs almost as well as it cuts. The Spartan also echoes the ancient Kopis in its handle. It’s designed to help the hand resist the pull of centrifugal force and to retard forward momentum, when stabbing, or backward movement, when hammering or smashing with its pommel. Injection molded out of Grivory with steel liners for strength, it’s heavily contoured for comfort and features irregular fluting and a heavily textured surface finish for an exceptionally effective grip.

The Spartan has dual pocket clips to assure ambidextrous carry and for quick draw opening, it features a thumb plate that can be used to open the knife like a conventional "one handed opener" or be snagged on the edge of a pocket during the draw stroke and opened automatically. Additionally, the Spartan incorporates our Tri-Ad locking mechanism, which has proven, under torture testing to be almost impervious to stress, strain and shock. It’s almost impossible to overcome and offers a huge margin of safety not found in our competitor’s folders.
  • Weight: 7.5 oz.
  • Blade Thickness: 4 mm
  • Blade Length: 4 1/2"
  • Steel: Japanese AUS 8A Stainless
  • Overall: 10 1/2"
  • Handle: 6" Long. Grivory w/ Steel Liners
  • Stainless Pocket/Belt Clip Battle Gear
  • Made in Taiwan

UPC Code: 705442007951

The original locking mechanism. It can be found mid spine or at the bottom of the handle, and it provides tight lockup that will wear well.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Zytel Handles
Zytel Handles
A nylon polymer that is lightweight and extremely durable, Zytel can be shaped and textured to provide excellent grip.
4.605 (124 reviews)
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5 out of 5
Kevin V
Hialeah, Fl
Mar 17, 2014
Pros: Lock Type, Overall Quality, Lock Ease of Use, Blade Sharpness, None
Cons: Weight, Ease of Opening, Pocket Clip
Good over large folder
Its a great knife to have and I definitely would buy another one. Crazy sharp out the box as well
5 out of 5
Texas ya'all
Dec 17, 2013
Pros: Blade Sharpness, Lock Type, Handle Material, Handle Feel, Overall Quality
Cons: None
Commands respect! This is one bad ass blade!
This is my favorite EDC! It fits my hand just right. Sure it's a heavy blade but it's better than a whimpy little girly girl knife. All my bros that see it want to get one. It opens fast as you pull it out of your pocket thanks to the thumb stud. This is probably the sharpest knife I own, holds an edge and locks up tight. This is a true survival/defense/ tactile knife. It's my first Cold Steel and I'm sure it won't be my last. Look it up on YouTube, I like the part whe it gets rammed through a car hood. I'll be sure to take this baby on my next Bigfoot expedition just in case I cross paths with a flipping yeti! Seriously get one, you won't be disappointed.
4 out of 5
New York
Nov 15, 2013
Pros: Ease of Opening, Lock Type, Handle Feel, Blade Sharpness
Cons: None
One of my Favorite Knives
This is a great hard use knife overall. You can chop with this knife, and it could definitely compare to a some fixed blade knives of similar size. Depending on the sharpening method you use, the recurve could be a little difficult to sharpen. The handle is great. Opening may take practice, but is a lot of fun, fast, and easy. The only problem I have with this knife is that the screw for the thumb plate is weak; it has already broken twice on me, but Cold Steel will send you a new one for free.
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