My dad has this knife. He'll be happy to know that this blade passed the Mayor of Destruction! :P Thanks dude!

Carried MK3 in the Navy. SEALs of my era never used them because they're heavy and spot rust in salt water: most switched to custom titanium knives which were expensive at the time. I used the MK3 like a tool, it was a good hammer and can opener. The serrations cut through airframe and thin metals and line. The stainless in the MK3 does not hold a very sharp edge, but it easily penetrates steel. I believe they temper them soft so they don't break for impact use. I had one of the first models and the steel was rust prone and brittle. My service MK3 was softer and more rust resistant: so Ontario improved them. This new model looks great, I will have to get one!

Been wanting this knife, so I watched a second time. Glad it held up so well! And I really enjoy your entertaining and informative vids. Subbed.

Another great video. Can't believe knives leave the factory without a razor edge.

I found the older version at an antique store and it was only $20 bucks. Definitely glad I bought it

Love the video lol and just gunna about time this video came out and thank you for testing the blade now I know if it's worth keeping

Nice test, I have the Ontario Spec plus version of this knife, the Sp-4, it came from the factory with a similar edge needed work, once there it stays pretty well. It is a good chopper and saw is awesome. I almost bought one of these exact ones the other day, factory edge and sheath caused me to go with the razor sharp Kabar mk1 right next to it.

You're the best, Mayor Fuglycool!!! PLEASE BRING BACK THE KNIFE DESTRUCTION TESTS 🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼

you do great reviews thanx Mayor

Great review man! Love the comedy in the reviews now. Keep up the good work.

Hey Mayor! Love your videos. I’ve been watching them for around 4 - 5 years now! Loved this one as well, I’d like to make a request that you test the ESEE laser strike! This would be a fun video and I’m not sure if it would survive your tests but I’d like to see you test it!

This test very thorough very impressive also this was the first piece of dive equipment I purchased lol

I’m impressed with that knife. I never try any of these tests at home, I wait until I get to work. But this would be a good knife for many survival uses. Carbon steel is superior if you are not in salt water environments (the Randall knife company told my brother that years ago} assuming of course correct hardening and tempering of the steel, but this knife is one tough knife which means it is correctly heated and tempered. I like the redesigned clip point better than the original.

Hi from Spain congratulation ,very good video .

I love your videos. Very cool.

Great video, keep beating the shit out of your knives! I find it very useful info when purchasing new blades.

Great Reveiw Mayor!👍 This one certainly has it's Pro's & Con's definitely a Tank that can take a hiding very interesting Steel choice surprised they didn't go with a H1 Steel being a Navy Blade i suspect cost was the main reason for this , blunt as a Butter Knife from the factory at least that's easily remedied and that Butt Screw definitely needs addressing. Other than that not bad!

Another great review from youtubes' most underrated gear reviewer.

Glad the MK3 passed your tests but I have to comment on your assessment of 420 steel on the basis of the positive experience I have had with Gerber and Buck knives make with this steel. Sharpness of these branded knives has never been a problem. Also, a very different beast but I like my KA-Bar MK1. Thanks for the review.

I enjoyed this video! Nice ahhhnold voice also

great arm bro really cool cheers man

You are a champion sir, but you are tough on those blades.

Great knife fighting skils

Thanx for an education regarding to the article.This knife is not constructed as a full tang, the tang is fixed to the plastic handle, then is a vacant place in the handle for app. 1,5 cm and then the hammer is fixed to the handle just by the screw. But still Mark 3 passed the test! Ontario knows how to create a durability!!

I think this is primarily a dive knfe and a stabber. The blade is corrosion resistant and the saw is probably better at cutting lines, nets, and wires underwater. Its weighted for pounding and so it sinks without giving away a diver's position. The blade is thick to allow its use as an expedient pry bar. It's a compromise knife, but a better knife for underwater use than its predecessor MK 2 (Kabar) knife.

Truly I think I'd pick up a rock if I needed to beat on brick or cinder blocks. I have the older version Mk 3 Mod 0 I use to dig blunt arrows out of stumps and carry it in a leather sheath (Triple K 6" leather or a Buck 119 sheath) because the metal collar in the plastic (original) sheath runs down the edge in placing and removing. Great knife; sheath needs rethinking. Was my "boat knife" for decades and had cleared props of seaweed and Nylon line picked up that snarled the prop-shaft. Often in urgent circumstances.

I'd like to see how the Bear Grylls Ultimate Pro would hold upto these test. Thanks Mayor!

What would you choose between this knife, Ontario SP6 and Ka-bar Modified tanto for tactical use?

Absolutely terrific videos. But an inglorious end to the brave Mineman in this one lol

Thanks. How about another video regarding what your thoughts are on survival knife criteria. I love the Glock; yet miss a steel pommel. Cheers!

Your Honor, you have the greatest knife videos and are very informative! You also are very likable and funny. Now just a comment. I have been collecting Aviation (Military) survival gear for 40 years now. So I do know just enough info to probably get myself in trouble. The saw on the back of those types of knives are really meant for getting out of helicopters and some airplanes in an emergency situation (Read: Crash landings). But, as you have clearly shown, this saw can be used for notching wood for traps (animal and human) if need be. By the way, you didn't show and give your opinion on the sheath it came with. In fact you never do. Not a problem, but maybe in the near future you may decide to test them too? Thank you Your Honor for the cool videos and keep up the great work as I am watching. :)

This is like the "Star in a Reasonably Priced Car" test track but with knives... I wish you attempted to cut the lime before damaging the blade, I bet it wouldn't have cut much better. I also would have liked to see the saw edge perform after all the hammering on concrete and I was hoping you'd unscrew the screw to take the pommel apart. Good video nonetheless. I own the older version of this knife with the pointier tip that you showed in the beginning. A travelling sharpener came by my house one day so I gave him that knife to see what he could do with it - he put a Scandi grind on it and sharpened the false edge as well. Now the blade resembles a Mora knife with more piercing potential. I haven't put it through any rigorous tests though. Subbed.

Muito bom guerreiro. Força

Nice video.

Arnold vs the Lock Ness Monster sounds like a good movie to me.

Great video bro. That knife held up better then I thought it would after hearing it was stainless steel. That's pretty impressive. BTW have you ever thought about testing the Russian Spetnaz Machete?

another excellent video,looks a decent knife but I'm not keen on knives with serrated edges I find it weakens the blade and difficult to clean (just my opinion) I have at last got myself an authentic USMC ka-bar fighting knife and I love it, it took a while to find as there is a lot of fakes out there,but got there eventually as always enjoyed the video and look forward for more, thanks for sharing

I don't think he understands the features of this knife. The saw is for cutting thick rope and the metal but is for knocking on your air tank while diving to communicate with your buddy.

Seems the only big problem is the sharpening and edge retention

Mayor Fugs fugged up that cinderblock, holy rusted ammo cans.

The saw is designed for plexiglass (aircraft cockpit)

Nice!!!!!!!!!!!!!

I think the Asek has the best saw despite the size of the blade. Ontario overall makes the best knives, whether it's Asek, SP2, MK3, etc.

Can you test the Swedish "Insats kniven"?

Lots of Ontario stuff (still waiting Master Cutlery Semper Fi Elite Tactical Knife)

how is the butt cap attached? and can you fix that yourself?

Shouldn't the new design be named mark 4 instead of retaining mark 3?

First

would love to see the ontario OKC3S marine corps fighting knife/bayonet.

It comes pre-dulled from the factory. Lol. Ten minutes with a v sharp would probably tune it up.

That's it! I'm not gonna watch anymore of your videos. I'm buying way too many knives. Thanks a lot man. :)

hi mayor I know I asked a while back for the esee 3 butt it is quite expensive so I was thinking maybe you can get and Ontario butcher knife it's used as an outdoor knife not in the kitchen please

Arnold is the best part of your videos! To da choptar!

Great review the Navy use rope and limes that's what the saw back is used .

"The strange case of the knife which doesn't cut"

Ontario and the Navy say this is a dive knife (which I'm sure it excels at) but I think it would make a great boot knife for self defense and light utility use. I'd never use it has a hardcore survival knife myself. I think larger, thicker, blades made out of better quality steel are more suited for survival/bushcraft tasks like batoning. Supposedly there are 3 different knives that were made for the Navy Seals (the Ontario Mark 3, the Cold Steel SRK, and the Sog Seal Team Elite). The best quality one is the Cold Steel SRK in CPM 3V. I've heard they use and abuse the hell out of that knife in BUDS training and it handles it well. It also has much better edge retention than the Sog Seal Team Elite (which is made out of Aus 8 Steel) and the Ontario Mark 3 (made out of 440 A and 420 steel). Real Navy Seals are allowed to carry their own personal knives so many of them don't use any of those 3. Some even carry high end Busse Team Gemini blades. As an avid knife collector of 30 years I researched this topic extensively. Great video by the way !!!

mime man will be remembered -Golden destroyer

What knife would you recommend that wouldnt dull the edge like that?

I was looking away when the clamps fell and i thought the knife snapped i was about to say wtf

blaze it

Why does this knife come dull?😕

Id love to see you try to destroy a hogue ex-f01

The first pattern mk3 blade is straight up copied from one of the various Ak bayonets including the blade catcher on the back. If have have this knife, you have to take the spring out of the sheath, cut off one of the bends and put it back in or it will dull the edge every time you sheath and unsheath it.

You should test a. Kitchen knife

Очень жаль, что нет хорошего и полного обзора на нож MPK MISSION...

Would this knife be good for self defense?

Does work under sea water ?

Do you think this knife is worth 70-80 dollars

as far as self defense, would this knife be efficient in slaying noobs?

you should try an esee. they are tough as nails.

It is not that sharp out of the box. It takes some work to put a good edge on it. The topside edge forward of the serrations is even worse. But it can be made into good gp knife.

nice I'm gonna get one of these

Love your tests but ain't loving the knife I guess the steel is ok but it didn't look too impressive. Thanks mayor

I have a spec plus sp4-93 knife

Do the Mission MPK-Ti.

If you drop it over board it down to Davie Jones Locker US NAVY Vet

This guy has Alan resnick energy

U.S palm AK magazine review when?

What is the best knife?

Good one! How about doing one on sum of them 20 dollar bud k Bowies for a joke

I this its 440A stainless steel

Mayor, I think you need a jock-strap and hard cup, just slip it over the trousers, during the brick tests. I'm just concerned for your safety.

I was never issued one :(

Hi sir please i want tset mod survival british army knife if you can And i will be happy if you do this for me

Full tang?

next do an axe test

Mr. Bean knife🤣

1.6 inches thick dude?

It's not on-tar-e-o, it's pronounced on-tear-re-o. I should know, I fuckin' live in Ontario Canada. It's said the same way.

Safety third...

Good knife if you don't have to cut anything🤣

I hate the serrations on this knife

Its meant to kill

this "knife" is so awful... nice video by the way

Okc.. that's not a hard job to sharpen ur knife like morakniv

Where'd you get that Fidel Castro shirt, bro?

this knife is junk