SOG Aegis AT Indigo & Acid Folding Knife

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Complete The Look

The SOG Aegis AT is designed for outdoor users featuring a highly functional 3.1" cryogenically heat-treated D2 stainless steel blade and rapid assisted opening with SOG's innovative ambidextrous AT-XR Lock. Its powerful XR locking mechanism also features solid built-in blade locking safety and spine-mounted safety system. The Aegis AT also has an ergonomic handle and grip pattern for comfortable use. The next evolution of the legendary Aegis.

Built for the Outdoors
Whether you are hiking, camping, or hunting, you need a knife that can handle the unexpected. With help from the adventurers and explorers out there, we made Aegis as the perfect outdoor companion.

Made for the Adventurers
When going into the uncharted, every piece of gear needs to be precise and dependable. Purposefully designed for working outdoors, Aegis AT feels great in hand and great to use.

Considered Design
Smooth, yet textured for optimal grip, the handle is designed for comfort and confidence in outdoor conditions. Including a prominent lanyard loop that also acts as a hand-stop to mitigate slippage.

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 as a thumb backstop. Everything a safety should be.

Cryo D2 Steel Blade
A 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.


  • Overall Length: 8.14"
  • Closed Length: 5.01"
  • Blade Length: 3.13"
  • Product Weight: 5.15 oz.
  • Blade Steel Type: Cryo D2
  • Blade Thickness: 0.12"
  • Handle Material: GRN
  • Handle Color: Indigo
  • Accent Color: Acid
  • Finish: Titanium Nitride
  • Locking Mechanism: AT-XR
  • Safety: Ambidextrous Spine-Mounted Safety
  • Opening Mechanism: Assisted Thumb Stud
  • Blade Shape: Drop Point
  • Edge Type: Straight
  • Country Of Origin: Taiwan
  • Lanyard Loop: Yes

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to