SOG Blackout Pentagon FX Fixed Blade Knife And Sheath - CRYO S35VN Steel Blade, G10 Handle - Length 9 9/10”


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Part #:17 CS1501
  • Representing an evolutionary step in hard-use fixed blade knives, this is a full-sized knife made for the modern-day warfighter
  • The 9 9/10” overall knife has a 4 7/10”, CRYO S35VN steel, spear point blade with a titanium nitride finish and a 58-61 HRC
  • The muscular G10 handles are easily removed for a slimmer and lighter profile and are textured for an optimal grip
  • The handles have a single-fastener slip-on/slip-off design that allows you to customize your knife to your mission’s needs
  • The sheath comes equipped with accessories from SOG’s Universal Mounting System that allow for a mission-specific set-up
  • No-tool sheath adjustment allows you to increase or decrease the retention strength as needed


Representing an evolutionary step in hard-use fixed blade knives, the SOG Blackout Pentagon FX is a full-sized knife made for the modern-day warfighter. It features a double-edge, full-tang CYRO S35VN steel blade, G10 handles and a glass-reinforced nylon sheath compatible with SOG’s next-generation Universal Mounting System. The sheath system isn’t the only thing that’s adaptable as the handles can also be removed for a slimmer profile. The Blackout Pentagon FX is fully customizable to meet the demands of various missions, and purposefully designed to exceed expectations.

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