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SOG Pentagon OTF Auto Knife, Black Dagger Blade

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The SOG Pentagon OTF knife is designed to perform. With fast, one-hand opening, this Out the Front automatic features SOG's Dynamic Lock-Up system which delivers incredibly tight lock-up and dependability.

The CPM-S35VN blade pairs up perfectly with the hard anodized black aluminum handle giving you a tough knife for serious situations.

OTF knives can sometimes be difficult to fire. The Pentagon's oversized button fixed that by giving you multiple interface spots so it opens fast when you need it to.

The handle shape makes it comfortable to hold and gives you a secure grip regardless of the conditions.

Made in the USA.


  • Blade Length: 3.79"
  • Overall Length: 9.08"
  • Closed Length: 5.28"
  • Blade Material: CPM-S35VN
  • Blade Finish: Black Titanium Nitride
  • Blade Style: Double Edge Dagger
  • Handle Length: 3.75"
  • Handle Material: 6061-T6 Aluminum
  • Weight: 6.67 oz.
  • Made in the USA



  • Buy with confidence

    Posted by DAVID CLARK on Nov 4th 2021


    SOG really stepped up the quality with this knife and all their professional knives. The only reason I didn’t give it a 5 was a small warranty issue SOG fixed in a timely manner. I have Microtech, Guardian Tactical, and ProTech Knives and now SOG in my collection. Buy with confidence