Reviews and Ratings for Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath

Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheathrated 4.444 stars out of 5 (9 reviews)
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Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5 inch SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath

 

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Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 5 stars out of 5
Red
the desert cities
May 14, 2019
Pros: Weight, Handle Material, Overall Quality, Blade Sharpness
Cons: Weight, Handle Material, Sheath/Scabbard

A tank that handles like an humvee

Short version: pros: sturdy, VERY well balanced, very sharp, well made cons: no shock absorbance in the handle at all, main portion of the grip is a trifle slick, sheath is a bit loose. Overall: quick, sturdy, rock solid fighter for a damn good price. Long version: just a warning, i will nit-pick here. pros: this knife is about as sturdily built as you get. thick spine, solid hilt with no wiggle, and both bolts and a pommel nut keeping it together. the blade is shaving sharp, with a very nice point on it, and a nice saber grind. the finish is fairly standard for cold steel of this price range, so no complaints there.the balance of this is what makes it, though. this thing is heavy. there is no two ways about it. the spine is 1/8 of an inch thick and the guard is solid metal that seems to be pretty thick, but it balances out beautifully. the point of balance is about 1/2 inch in front of the guard, and the knife itself is incredibly lively in the hand, which, to be honest, i did not expect at all. it cuts and slices very well, as you wild expect, but it can do quick snap cuts like a knife half its size. the point is very sturdy and sharp, as one would expect, and the false edge would be simple enough to sharpen, should you feel the need. the hilt/fist guard itself is extremely solid and well made, and would do serious damage to anything that got hit by it, though i did have to de-bur a small area on the back of the fist guard, as it took a bit of hide off my finger. i should also note that the handle itself is much more suitable to people with larger hands, as the finger notches and reinforcing bar in the guard are a bit large. Cons: the only real cons i can find here are more nitpicks than anything, but still are a thing. the hilt has no shock reduction at all. anything you hit, the shock goes one place: your hand. granted, this isn't really intended to be a heavy-duty chopper, but it still is a bit of a con. the other con of the is basically another nitpick, and it is that the hilt, apart from the crossbar and d-guard, has no real traction for your hand. it could be argued that with a guard like that it isn't needed, but its still a problem, at least to me. the sheath, while not bad, isn't anything special.it's set up, at least initially, for tip-down cross draw carry. the sheath's retention isn't great. if you hold it upside down the knife will fall out. it does the job, but that's about all. To sum up: this thing is a monster that is built like a tank, but handles extremely well, especially for less than a hundred bucks.
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 5 stars out of 5
Jnemes65
Pennsylvania
May 28, 2020
Pros: Weight, Handle Material, Overall Quality, Blade Material, Sheath/Scabbard, Materials, Finish, Blade Sharpness
Cons: None

Slightly modified...

One helluva bada**ed Bowie Knife! I got a hacksaw out and cut off the knuckle guard. Next I filed in some checkering on the handle. Finished it off by wrapping hockey grip-tape around the aluminum handle. This shifts the weight just a bit more forward. Man can this MFer chop!
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 5 stars out of 5
Dos Huevos
ok
Aug 16, 2022
Pros: None
Cons: None

Try me sweetheart.

Solid, sharp and fun to play with. Handle is tough, though punching things with it can be a little rough on the hands. Battle worthy workout or home defense knife.
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 5 stars out of 5
Joshua
Falls Church, Va
Mar 09, 2022
Pros: Blade Sharpness, Weight, Overall Quality, Materials, Handle Material
Cons: None

Total bad to the bone knife

I honestly got no use for this knife other than to show off and keep around for some hard camping or SHTF situation. It is big, mean, tough, sharp, and bad to the bone. This knife is not for pacifists. This knife is for hard camp use and combat. Those are just plain facts. The secure Ex sheaths are nothing to write home about. But so far my sheath has not dulled my knife from many withdrawals. Which means I don't have to spend $70 on a custom kydex sheath. It is carbon steel. So wipe it off after use in a wet environment and prefewrably a thin coat of food grade mineral oil to keep rust away. I highly suggest if you want a Chaos series Cold Steel knife. To get one while they are still available. some have been discontinued. And I fear it is only a matter of time before the Bowie version is discontinued as well.
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 5 stars out of 5
Sleestaks
Dallas,TX
Nov 12, 2025
Pros: Blade Material, Blade Sharpness, Finish, Handle Material, Materials, Overall Quality, Sheath/Scabbard
Cons: Weight

Amazing Blade

Up front: I’m a blade geek. I’ve been eyeballing this knife for a long time and finally pulled the trigger and am very happy I did. Love everything about it and the protective knuckle duster hand guard with striker pommel is very nice, not uncomfortable at all. Weight is a little heavy but the balance makes it still quick in the hand. It’s a bad boy designed for one thing— fighting — and you can feel extremely confident in a scrap with this in your hand.
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 5 stars out of 5
Former Sf Dude
New Jersey
Nov 18, 2025
Pros: Blade Material, Blade Sharpness, Finish, Handle Material, Materials, Overall Quality, Sheath/Scabbard, Weight
Cons: None

The Best fighting knife!!!

I like these so much that I bought two of this one and one of the double edged one. I do my entire routine with one of these. I've added some unique techniques to it because of the knuckle protection. The Subhilt makes training with it even safer as your hand will not slip. I do wish they would make a single edge trainer like it. If they did I would buy two of them and train doubles. I have almost all of Cold Steel's big Bowies, (Three Trailmasters, the Natchez, the Laredo, Marauder, Boar knife, OSS, ODA). This one is my favorite with the Trailmaster a close second. This is a Combat Knife. You will for sure get arrested probably anywhere for carrying it unless you are in Combat lol. The blade is just perfect. Not too thick (Natchez Beast) The Pommel is its own weapon. God help anyone who was dumb enough to grab you. The knuckles will for sure stop a Bat. Really hard to beat for any price. Its huge though. Lynn Thompson has definitely done it again!!!
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 4 stars out of 5
Ricky
Northwest
Jan 12, 2026
Pros: Blade Material, Blade Sharpness, Finish, Handle Material, Overall Quality, Weight
Cons: Sheath/Scabbard

CS Bowie Chaos knifewith the knuckleduster handle

My knife was fine, sheath was tight, but it might loosen. Solid and full tang.
Made a leather sheath for some customization, and carry options.
Price was a little high for MIC knife. Bought a double edge dagger trench knife years ago, the offering is pretty good for knuckle duster trench knife variations
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 4 stars out of 5
Connor
North Little Rock, Ar
Apr 08, 2026
Pros: Blade Material, Handle Material, Materials, Overall Quality, Sheath/Scabbard
Cons: Blade Sharpness, Finish, Weight

Beast of a knife

This knife is destructive. It's heavy, it's solid, and it'll bring the pain when you need it. The aluminum handle feels good, and I personally don't have issues with the support for the knuckles that goes between the fingers. I have size XL hands.That being said, the edge I got on mine was subpar. The grinds were uneven, and the tip was blunt. Not what you want in a bowie. Luckily, I touched it up on my worksharp with the blade grinder attachment and now it'll hack and stab through whatever you throw it at.
Cold Steel 80NTB Chaos Bowie Fixed Blade Knife 10.5" SK-5 High Carbon, Aluminum Handles, Secure-Ex Sheath
rated 2 stars out of 5
Kenneth
Mountainair, NM
Oct 03, 2023
Pros: Blade Material, Materials
Cons: Blade Sharpness, Sheath/Scabbard

Love the knife...I HATE the sheath

This one will be quick. It's a big, awesome bowie with some knuckledusters to boot. The blade is made with a tough as nails Japanese steel and it sharpens very nicely. It is thick but not too thick behind the edge, which works for me. I like the knife itself very much. My one and only and MAJOR issue is the sheath. The sheath does well in keeping the blade in with little rattle, but it dulls the blade a little with every unsheathing and it scratches the finish. In fact it was already dull when I unboxed it. I've had this problem with every secure ex sheath I've had and I've had 7. Thought I was going crazy but it turns out this is not an uncommon problem. Dear Cold Steel, start using kydex and give this secure-ex BS a rest. Your good knives are being ruined before they are ever even used. That is all.