SOG Pentagon MK3 Tactical Knife – Review

U.S.A. –-(AmmoLand.com)- The SOG Pentagon MK3 is a tactical knife. It has a wide spear point 3.66” blade which is tipped with a slight back edge and is cryogenically heat-treated CTS XHP stainless steel. This knife is designed for self-defense.

SOG Pentagon MK3 Tactical Knife

When you employ the knife, you will feel like that you have a firm grip on it due to the thumb grooves on the top of the G10 handle, the grooves on the hilt of the handle under your palm, and the grooves on the bottom of the handle under your middle finger. The finger groove further enhances your grip and I think the grooves on the flipper also helps hold your pointer finger in place if it slips forward. I do wish that the top of the spine on the hilt was flat and had thumb grooves for 1”. But I guess with the thumb grooves and the thumb studs that is sufficient.

It has a reversible pocket clip that allows you to clip the SOG Pentagon MK3 onto your pocket or a strap on your backpack. Due to how that the clip is positioned the knife sets rather low and inconspicuously in your pocket but is readily accessible.

I like the locking SOG XR Lock system. It has a sliding ambidextrous lock. Push it back to unlock and close the blade. SOG claims to have the ultimate built-in blade locking security when open and is able to withstand up to 1,500 pounds of force. They say that it is strong enough to hold a Toyota (Not that I know anyone capable of lifting a Toyota with the tip of their knife).

Fifty years ago, to open our folders one-handed we had to slightly open the tip of the knife and then hang it on the seam on the leg of our Wranglers and flip it open. That was the closest thing to a one-handed opening folder that we ever heard of. Opening the SOG Pentagon MK3 one-handed is easy and they afford you three options in which to perform a one-hand opening.

1. Thumb studs
2. Flipper on the bottom hilt side of the blade. There are finger groves on it which also further aids in the opening.
3. Or, you can slide the lock back and with the flip of the wrist and the blink of an eye it is open.

Of the above three options, I favor the flipper.

I’m not a tactical type of guy. I’m an outdoorsman and fish, hunt, backpack etc. By the same token, we all live in a fallen world so unfortunately sometimes you have to protect your loved ones. I’m not up on all of the current knife laws. Heck, here in Idaho there used to be a knife booth in the mall that sold switch blades so we can kinda carry whatever we want here but I faintly remember reading that in some states knives sharpened on both edges were illegal and classified as stilettos. The top edge on the SOG Pentagon MK3 has almost an edge. I’m sure one of you little scalawags out there will buy one and put a real edge on it. (And put a pic of it on Fakebook and get reported and go to FB jail). And with that we will close down this Product Review.

The SOG Pentagon MK3 is offered in black or OD Green and the MSRP is $174.95 and as is usual, we will close with the specs.

• OVERALL LENGTH – 8.38 in
• CLOSED LENGTH – 4.77 in
• BLADE LENGTH – 3.6 in
• WEIGHT – 4.9 oz
• BLADE STEEL TYPE – CRYO CTS XHP
• BLADE THICKNESS – 0.12 in
• HANDLE MATERIAL – G10
• HANDLE COLOR – OD Green
• OPENING MECHANISM – XR, Thumb stud, Kick
• LOCKING MECHANISM – XR
• FINISH – Black Titanium Nitride
• BLADE SHAPE – Spear Point
• EDGE TYPE – Straight
• COUNTRY OF ORIGIN – Taiwan

About Tom Claycomb

Tom Claycomb has been an avid hunter/fisherman throughout his life as well as an outdoor writer with outdoor columns in the magazine Hunt Alaska, Bass Pro Shops, Bowhunter.net, and freelances for numerous magazines and newspapers. “To properly skin your animal, you will need a sharp knife. I have an e-article on Amazon Kindle titled Knife Sharpening #ad for $.99 if you’re having trouble.”

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