Mantis MF-4CM Chaos 2 Fixed Blade Knife 3.5" 154CM Black Tanto, Black G10 Block Handles, Nylon Sheath

Special Price* :

$59.95

Our Price* : $94.95
MSRP* : $130.00 | You Save* : $70.05 (54%)
Part #: MNTMF4CM | Mantis Knives
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Description

MNTMF4CM: MF-4CM Chaos 2 Fixed Blade

Mantis Knives

A long-loved design returns to Mantis' production lineup! This revived item was extremely popular in the past and Mantis has listened to the knife community by bringing back some of their classic designs.

The MF-4CM is one tough fixed blade. The 154CM blade offers superb edge retention and corrosion resistance, while the blacked-out appearance makes it truly look like a tactical knife. The tanto blade profile is excellent for piercing and slicing tasks alike, all while having a thick blade stock to put some weight and power behind your chops and swings. Black G10 blocks sitting on top of the partially skeletonized handle are arranged in such a way that the overall weight is reduced while the blade is still incredibly comfortable in the hand, with or without gloves. The included nylon sheath features two button clasps and tons of way to mount the sheath to your belt, cargo pants, or pack.

Specifications

  • Blade Length: 3.50"
  • Cutting Edge: 3.25"
  • Handle Length: 4.75"
  • Overall Length: 8.25"
  • Blade Material: 154CM Stainless Steel
  • Blade Thickness: 0.186"
  • Blade Style: Tanto
  • Blade Grind: Flat
  • Blade Finish: Black
  • Handle Material: Black G10 Blocks
  • Sheath Material: Nylon
  • Weight: 6.9 oz.
  • Weight with Sheath: 9.3 oz.
  • Made in Taiwan

UPC Code: 149780502332

Related Categories

Mantis Knives, Mantis MF-4 Series, 154CM Blade Steel, G10 Handle Material, Fixed Blade Knives, Fixed Blade Knives Combat Knives

Product Handle Badge: G10 Handles
Product Steel Type Badge: 154CM Stainless Steel
Product Sheath Badge: Nylon Sheath
Mantis MF-4CM Chaos 2 Fixed Blade Knife 3.5" 154CM Black Tanto, Black G10 Block Handles, Nylon Sheathrated 5.000 stars out of 5 (2 reviews)
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Mantis MF-4CM Chaos 2 Fixed Blade Knife 3.5" 154CM Black Tanto, Black G10 Block Handles, Nylon Sheath
rated 5 stars out of 5
Nick L
RI
Mar 19, 2026
Pros: Blade Material, Blade Sharpness, Finish, Handle Material, Weight
Cons: Sheath/Scabbard
Seconding the review from 2012
I only did a little testing but I was very impressed with this tactical knife. Both edges of mine were shaving sharp, and although the handle took a bit of getting used to it is very secure in-hand, and I imagine it holds up in the rain. The steel is very nice and it's a good thick slab of it, and the black finish looks good in person. Good weight too: the heft rests comfortably against my palm and the balance is just fine. This is sort of designed to be an ugly knife, but it's an excellent tool and weapon. The sheath really does suck: seems like it's designed to go on a backpack. I got rid of the bottom set of snaps to make removing the knife smoother. I used this knife to do it, so a good real-world cutting test vs carboard or plastic bottles: the blade went through the nylon like butter and I had no trouble getting the cut started. So I imagine this would hold up well against seatbelts and other tough synthetic fibers you might come across in a survival/tactical situation... though do some research on that, I haven't actually cut any seatbelts and it's not serrated. Regardless, this is definitely worth taking a look at, especially at the discount.
Mantis MF-4CM Chaos 2 Fixed Blade Knife 3.5" 154CM Black Tanto, Black G10 Block Handles, Nylon Sheath
rated 5 stars out of 5
Scott O
Kansas city, Mo
Feb 24, 2012
Pros: Weight, Overall Quality, Blade Material, Materials, Finish, Blade Sharpness
Cons: Handle Material, Sheath/Scabbard
Great knife
Great knife out of the box. Almost hair shaving sharp when you get it but that's not really that big of a deal with me. Great steel and is nice and thick. Definately worth the price. Sheath sucks however which is the case with most knifes.