SOG Trident AT MK3 Assisted Folding Knife – OD

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Pickup currently unavailable at 591 Bernard Avenue

Designed for professional users, the Trident AT features rapid assisted opening with SOG's innovative ambidextrous AT-XR Lock, as well as integrated line cutter and glass breaker. The Trident AT is easy to carry, with a highly functional 3.7" cryogenically heat-treated D2 stainless steel blade. Its powerful AT-XR locking mechanism also features built-in blade locking safety and spine-mounted safety system. The next evolution of the field-proven Trident.

The Trident AT is a modern update based on the feedback from professional users, made to hold up in the harshest conditions, balancing purposeful design with heavy-duty performance and reliability. As the latest update to SOG's proven Trident design, the latest version is optimized to enhance the user's capabilities in any critical situation, the Trident AT fast open is only matched by its ability to support emergency rescue in critical situations. Every element of the Trident AT has been developed for extreme or emergency situations — including fast blade open, line cutter, and glass breaker — all seamlessly integrated with a high-grip textured and durable handle.


  • AT-XR Lock
  • SOG's patented Assisted Technology (AT) XR Lock, delivers fast, one-handed open and solid lock-up once open. Reliable and powerful, able to withstand 1500 pounds of force, AT-XR Lock provides the ultimate built-in blade locking security when open and ensures it only opens when intended.
  • Safety 2.0
  • SOG worked with users to develop an ambidextrous safety that is as easy as it is fast to use. Designed to be intuitive and utilize natural hand movements, it means you don’t have to break your grip to operate it. Once open, it locks in place like a thumb backstop. Everything a safety should be.
  • Cryo D2 Tool Steel Blade
  • Versatile high-carbon tool steel that is cryogenically heat-treated to SOG's unique performance specifications. D2 provides the ideal combination of edge retention and durability for long-term use with ease of maintenance.


  • Blade Length: 3.70"
  • Closed Length: 5.33"
  • Overall Length: 9.03"
  • Blade Material: D2 Tool Steel
  • Blade Thickness: 0.12"
  • Blade Style: Clip Point
  • Blade Grind: Flat
  • Blade Finish: Black Titanium Nitride
  • Handle Material: OD Green Glass Reinforced Nylon
  • Locking Mechanism: AT-XR Lock
  • Pivot Assembly: AT Assisted Technology
  • Pocket Clip: Deep Carry Stainless Steel (Tip-Up, Right/Left Carry)
  • Weight: 5.15 oz.
  • Flat Dark Earth Colored Accents
  • Ambidextrous Spine-Mounted Safety

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