SOG Pentagon OTF Automatic Knife, Blackout

The SOG Pentagon OTF Automatic Knife in Blackout (brand part no. SOG-15-61-01-57) is an American-made out-the-front switchblade built for users who need a dependable one-handed fast-opening knife. Its 3.79-inch spear point blade is machined from Cryo CPM S35VN steel with a black titanium nitride finish and a straight edge, backed by SOG’s Dynamic Lock-up System, which redefines open-reliability and blade lock-up strength for OTF knives. The hard-anodized aluminum handle in a Blackout finish reinforces the durability of the switchblade mechanism while keeping the 9.08-inch overall knife manageable in the hand. At 6.7 ounces, it delivers professional-grade steel and technology in a genuinely portable package.

Key Specifications

• 3.79-inch Cryo CPM S35VN spear point blade carries a straight edge and a black titanium nitride finish for durability and reduced glare.
• Dynamic Lock-up System redefines open-reliability and blade lock-up strength for out-the-front knives.
• Hard-anodized Blackout aluminum handle reinforces the switchblade’s durability while keeping weight down.
• 9.08-inch overall length, 4.06-inch closed keeps the knife manageable to carry despite its full-size blade.
• 6.7-ounce weight keeps the knife portable for daily carry.
• Made in the USA reflects SOG’s domestic manufacturing for the Pentagon OTF line.

Frequently Asked Questions

Is this a true out-the-front automatic? Yes, it is an American-made OTF switchblade using SOG’s Dynamic Lock-up System.

What blade shape does it use? A 3.79-inch spear point in Cryo CPM S35VN steel with a straight edge.

Buy the SOG Pentagon OTF Automatic Knife, Blackout

Order the Pentagon OTF in Blackout from SOG in the automatic knives lineup, shipped fast from our Lubbock, Texas gun shop.