SOG Knives TAC AU Automatic Knife Black 3.43in Plain Tanto Blade AUSOG15380357

The SOG TAC AU Automatic Knife is a purpose-built out-the-side automatic designed to meet the demanding needs of military, law enforcement, and serious everyday carry users. Proudly made in the USA, this rugged automatic knife combines quick, one-handed deployment with proven materials engineered for high-performance cutting in real-world environments.

At the core of the TAC AU is a 3.43-inch tanto blade crafted from cryogenically treated D2 tool steel. This formulation is known for its hardness, edge retention, and toughness—ideal for both piercing and slicing tasks. The high saber grind and top swedge enhance cutting geometry, while the black titanium nitride coating adds a tactical, non-reflective finish with excellent corrosion resistance.

Opening the knife is fast and fluid, thanks to its out-the-side automatic mechanism activated via an ambidextrous thumb slide. The AU-XR Lock system offers a rock-solid crossbar lock-up capable of withstanding up to 1,500 pounds of force. Designed for both speed and safety, it features a double-action safety mechanism that helps prevent unintentional deployment during carry or use.

The handle is precision-machined from 6061-T6 anodized aluminum, finished in black with aggressive texturing for a firm grip under all conditions. Its ergonomic design includes a jimped back spacer for added control, a deep carry tip-up pocket clip for discreet transport, and a lanyard hole for optional retention customization. With a closed length of 4.59 inches and a total weight of just 3.5 ounces, the TAC AU remains compact and easy to carry without sacrificing durability or control.

Every component of the SOG TAC AU is engineered for reliability, from the robust materials to the ambidextrous controls. Whether you're operating in the field or relying on your gear for daily utility, this knife delivers consistent performance and tactical-grade dependability.

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