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

Customer Reviews 4.606 Read 132 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.
AUS-8 Stainless Steel
AUS-8 Stainless Steel
A very widely used EDC steel, AUS-8 can take a very nice edge while also maintaining moderate edge holding and corrosion resistance properties.
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.
4.606 (132 reviews)
4.6 out of 5 stars
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2 out of 5
Dec 11, 2014
Pros: Blade Sharpness, Handle Material, Lock Type, None
Cons: Weight, Ease of Opening, Blade Material, Overall Quality
Poor steel quality
We all know that steel is a main factor. Steel as D2, S35-VG or VG-10 - provides a high wear and corrosion resistance and it is hard. Spartan's Japanese Aus 8A stainless steel is comparable to 440B that is relatively a low cost, highly corrosion resistant stainless steel. It does hold the edge for awhile and resharpens without too much effort. But this steel is very fragile. My knife just lost a big piece of its blade while chopping some wood and it was sent back to the Cold Steel for a replacement. Cold Steel's videos can show you anything but you need to understand the knife's capability in a real life. Other than that, it's a good knife for the money, just don't expect it to be a super knife!
5 out of 5
Bobby T
Riverside, Ca
Dec 09, 2014
Pros: Blade Material, Lock Ease of Use, Pocket Clip, Blade Sharpness, Handle Feel, Ease of Opening, Lock Type
Cons: Weight, None
I have carried this knife as my EDC for the past 2 years. The only reason I write this now is because I have found myself getting another one because I gave the other one to an admirer. It's not my only daily EDC but when you feel the need for a "battle blade" it doesn't get any better. Comfortable to use and after a little while you forget about the size. In fact, you miss it when it's gone.
5 out of 5
Humble CEO
Oct 21, 2014
Pros: Blade Sharpness, Lock Type, Pocket Clip, Handle Feel, Overall Quality
Cons: None
Perfect design
Perfect design for tactical an back up survival applications check out my youtube review on this knife
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