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SOG Specialty Knives & Tools Pentagon OTF Auto Knife - Blackout


Out of stock

SOG Specialty Knives & Tools Pentagon OTF Auto Knife - Blackout


Pentagon OTF is designed to meet the exacting demands of users who require a dependable one-handed, fast opening knife. SOG's Dynamic Lock-up System redefines open reliability and blade lock-up strength in OTF knives, while the CRYO S35VN blade and hard-anodized aluminum handle reinforce the durability of the knife. Pentagon OTF delivers reliable OTF technology for professional users who rely on high-end steel and technology.



  • Cryo CPM S35VN Steel: An American-made steel it features vanadium and niobium carbides that provide high degrees of toughness and wear resistance.
  • Confident Open and Close: Oversized open/close button that allows for multiple interface points. Allows for rapid opening, even while under duress.
  • Dynamic Locking System: Ensures the blade moves quickly to the open or closed position. When there, the blade is held firmly in place in a secure, reliable, rattle-free lock-up
  • Ambidextrous Design: Smooth opening with either hand
  • Anodized Aluminum Handle: Easy to hold, even with gloves. 
  • Double Edge Dagger Style Blade



  • Overall Length: 9.08"
  • Closed Length: 4.06"
  • Blade Length: 3.79"
  • Blade Thickness: 0.11"
  • Weight: 6.7 oz
  • Blade Steel Type: CRYO CPM S35VN
  • Blade Finish: Black Titanium Nitride
  • Blade Shape: Spear Point
  • Edge Type: Straight
  • Handle Material: Aluminum
  • Handle Color: Blackout
  • Opening Mechanism: OTF Switch
  • Locking Mechanism: Dynamic Locking System
  • Made in the USA
More Information
SKU 15-61-01-57
Product Type Knife
Manufacturer SOG Specialty Knives & Tools
Color Black
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