Columbia River CRKT M21-04G Carson Flipper 3.875" Gray Plain Blade, Black G10 Handles


MSRP* : $79.99 | You Save* : $30.04 (38%)
rated 4.571000000000001 stars out of 5 Read 21 reviewsWrite a Review

CRM2104G: Carson M21 G10 - Plain Edge

Columbia River Knife & Tool

We did it again. This G10 work knife series features premium materials, build, and finishes--all at a value price.

It began like a Christmas wish list.

What if we could build Kit Carson's M21 series just the way a custom knifemaker would: with a G10 and stainless steel InterFrame build and a titanium nitride-coated premium stainless steel blade? What if we could bring it in at a very competitive value price? Just like a kid on Christmas morning, we got everything we wanted. And so can you.

Choose from two sizes, just like our original M21 aluminum series, in your choice of Razor-Sharp or our exclusive Combined Razor-Sharp and Veff Serrated edge grinds.

The swedged and recurved spear point blades are made of premium 8Cr14 stainless steel with a non-reflective black titanium nitride finish which gives maximum corrosion resistance.

There are many reasons custom knifemakers choose an InterFrame build with stainless steel liners and G10 scales in preference to aluminum or even titanium scales. First, the aggressive G10 texture gives unparalleled grip. Second, it is very strong. Third, it is lightweight. And finally, G10 is an insulator with a low specific heat. Therefore, it is cooler to grip in the beating desert sun, and warmer to grip at subfreezing temperatures.

These M21 models also feature the very popular "Carson Flipper" blade extension, which aids opening and acts as an additional blade guard.

Unlike the typical custom knifemaker, we are able to engineer our patented* AutoLAWKS automatic knife safety into all M21 models, which converts them into virtual fixed blades when their blades are open and locked.

As is standard practice on CRKT folders, Teflon bearings at the blade pivot assure velvety-smooth one-hand opening and closing, using Kit Carson's trademark dual checkered thumb studs which also act as a blade stop.

Every model features a removable Teflon-plated stainless steel clothing/gear clip. All fasteners, including the clip screws, are Torx. Liners, hardware and clip are black oxide coated.

So there you have the M21 G10 series. We call it a "premium value line." Everything you could ask for in a custom-quality work knife at a great price. Does that make us feel jolly? Ho, ho, ho!


  • Blade: Length: 3.875" (9.8 cm)
  • Thickness: 0.14" (0.35 cm)
  • Steel: 8Cr14, 58-59 HRC
  • Closed: Handle length: 5.375" (13.7 cm)
  • Open: Overall length: 9.25" (23.5 cm)
  • Weight: 5.9 oz. (167 g)
  • Made in Taiwan

About the Knife Designer

Kit Carson

of Vine Grove, Kentucky, is a retired professional soldier, rising to the level of Sergeant Major. He has made knives for 30 years and has been a full-time knifemaker since 1993. He is a voting member of the Knifemakers' Guild. Kit has been an avid hunter and fisherman for over 40 years, growing up enjoying the woods and trout streams in the mountains of north Georgia. About his philosophy of knife design, he says: "I strive to follow form and function in the knives I design and build. My reputation has been built around solid working knives, both fixed blade and folders. All the time spent outdoors as a young man and the time spent around the world with the Army has strongly influenced the knives I create." Nothing reflects this approach more than the Carson Design of our M16 series, which is built for function, not to follow fads. This highly successful knife series was named one of the Top 10 Factory Tactical Folders of the Decade by Blade magazine. The M16-14M recently won a comparison test conducted by Germany's Messer magazine.

UPC Code: 794023001853

Related Categories

Columbia River (CRKT), CRKT M21 Series, 8Cr13 Blade Steel, G10 Handle Material, Folding Knives

Pocket Clip
8CR13 Stainless Steel
G10 Handles
Columbia River CRKT M21-04G Carson Flipper 3.875" Gray Plain Blade, Black G10 Handlesrated 4.571 stars out of 5 (21 reviews)
4.6 out of 5 stars
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Columbia River CRKT M21-04G Carson Flipper 3.875" Gray Plain Blade, Black G10 Handles
rated 3 stars out of 5
North Parramatta, Other
Mar 25, 2020
Pros: Handle Feel, Weight, Handle Material, None
Cons: Ease of Opening, Pocket Clip, Blade Material, Overall Quality
ended up somewhere in the middle
Fantastic idea but very poor execution. BTW handle shape is beautiful and it’s very nice to handle it in any way. Flipp bar should be just a little bit bigger/ longer to give you fast and smooth flip open action. But: 1. 8Cr14 it's not so great as some other steels on the market (I’d pay far more for a quite better steel than 8Cr14), 2.flipp action is not so good (very oftenlu you'll hit AWTO lock bar or you'll not fully open the knife at all), flipp bar should be just a little bit bigger/ longer to give you fast and smooth flip open actionAlso, having a few versions of M21 (14SF, 14SFG, 14G etc.) I have to notice that you CAN’T combine parts of one with any of others, even same versions seems as have a different measurements, sizes and length of liner lock, pivot hole… even pocket clip is different in size, shape and measurements as well as all of the screws. So if you think to buy a 2-3 models to make your preferred configuration you’ll be very disappointed. As I said, fantastic idea – very poor execution.
Columbia River CRKT M21-04G Carson Flipper 3.875" Gray Plain Blade, Black G10 Handles
rated 5 stars out of 5
Stacey M
Bloomington TX.
Mar 20, 2017
Pros: Overall Quality, Lock Type, Ease of Opening, Blade Material, Handle Material, Lock Ease of Use, Blade Sharpness, Weight, Sheath, Handle Feel, Pocket Clip
Cons: None
Great knife
Got in my new EDC knife. I love this knife it came ready to use out of the box. I like that the clip can be moved around so you can choose how you want to carry it. Tip up or tip down, right or left handed.
Columbia River CRKT M21-04G Carson Flipper 3.875" Gray Plain Blade, Black G10 Handles
rated 5 stars out of 5
Vicksburg, Ms
Feb 17, 2016
Pros: Blade Sharpness, Lock Type, Handle Material, Overall Quality, Pocket Clip, Ease of Opening, Handle Feel, Weight, Lock Ease of Use, Blade Material
Cons: None
CRKT Kit Carson M21-04 - my favorite hunting knife
I own several knives. Buck folder, a Henckel sheath knife, etc....This M21-04 is great. Sharpens well, folds and clips to trousers, lightweight and a good gripper. BTW, I already owned two smaller versions of this knife. All in all you cannot go wrong.
Read all 21 Reviews »
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