SOG Knives Pentagon OTF Automatic Knife FDE Dagger (3.8" Black)

Item #BHQ-120700
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  • Overall Length: 9.00"
  • Blade Length: 3.75"
  • Cutting Edge: 3.75"
  • Blade Width: 0.75"
  • Blade Thickness: 0.13"
  • Blade Material: CPM S35VN
  • Blade Style: Dagger
  • Blade Grind: Flat
  • Finish: Black
  • Edge Type: Plain
  • Handle Length: 5.25"
  • Handle Width: 1.25"
  • Handle Thickness: 0.59"
  • Handle Material: Aluminum
  • Color: Tan
  • Frame/Liner: Stainless Steel
  • Weight: 6.70 oz.
  • User: Right Hand, Left Hand
  • Pocket Clip: Tip-Down
  • Knife Type: Automatic
  • Opener: Thumb Slide
  • Brand: SOG
  • Model: Pentagon OTF
  • Model Number: 15-61-02-57
  • Country of Origin: USA
  • Best Use: Tactical, Everyday Carry
  • Product Type: Knife

  • CPM-S35VN, double edge, dagger blade with a black finish.
  • Textured, automatic thumb slide opener.
  • Flat Dark Earth (FDE) aluminum jimped handle with black hardware.
  • Tip-down pocket clip.


SOG Knives has created one daring out-the-front knife with this Pentagon OTF. The double edge dagger blade is made out of premium stainless steel. The thumb slide is quick and easy to launch the blade into action for slicing and cutting with no hesitation. The Pentagon OTF has a reliable locking system and solid blade lock-up when it comes to zero blade play, keeping it free of clatter within the handle. Textured jimping along the edges prevent any sliding or loose grip. To top it off, a tip-down pocket clip makes this readily available for your EDC collection.

If you like this automatic action, check out more of the SOG Tactical Automatic knife models and find a new piece for your EDC.

Customer Reviews

Issue resolved
Matthew A. on Dec 20, 2021

I understand that the blade was rubbing and distorting in the earlier production runs, but you must understand that things like that are not uncommon, and with brands like SOG, they are going to be quick to remedy such flaws so that you are satisfied with your purchase. BladeHQ is also a fantastic distributor, and will exhaust all resources in an effort to ensure satisfaction, so please be patient with these new designs, and don't worry if you have an issue. You will not simply have to eat 350 bucks. That said, this is an amazing offer. Sometimes bundle packages are clearly offering one great product with some much less desirable add ons in an attempt to clear inventory. This is not the case here. All three items here are excellent on their own, and worthy of individual purchase. The folder is one of the hottest "budget" edcs going right now, and the multi tool is very competitive with brands like Gerber and Leatherman. The OTF is the buzzworrthy Pentagon with one of the most solid lockups in the open blade position available on the production of market and sets a new standard in curing an issue we have all been scoffing over for years. What this all adds up to is one hell of a great deal. If you are even considering the OTF, buy it now and get this amazing bundle.

Flavio O. on Aug 25, 2021

The other reviewer on the black version is correct. The blade will never be sharp did the same test as him and the edge rubs on the inside of the handle. Huge design flaw a dull blade is a useless blade. DO NOT BUY!

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