The Heretic Hydra V4 OTF Automatic Tanto is back for 2025 with a refined design that pushes one of Heretic Knives' most recognizable platforms to an even higher level. Built for users who demand uncompromising performance and collectors who appreciate precision engineering, the Hydra V4 delivers rugged reliability with premium materials and innovative mechanics. Every detail has been carefully designed to create a powerful out-the-front automatic that's as capable in the field as it is impressive in any collection.
At the heart of the Hydra V4 is a 3.6-inch tanto blade crafted from premium CPM MagnaCut stainless steel. Renowned for its outstanding balance of toughness, edge retention, corrosion resistance, and cutting performance, MagnaCut is one of the most sought-after blade steels available today. The stonewash finish helps minimize the appearance of wear while adding a hardworking look that's ready for years of dependable use. The reinforced tanto tip excels at piercing tough materials, while the straight cutting edge provides excellent control for slicing, utility work, and demanding everyday tasks.
Unlike traditional double-action OTF knives, the Hydra V4 features a single-action automatic deployment system that fires the blade with authority at the push of a button. When it's time to close the knife, the integrated charging handle allows for smooth, controlled blade retraction. This proven system delivers powerful deployment while showcasing the unique engineering that has made the Hydra a standout in the automatic knife world.
The 5.3-inch black aluminum handle offers exceptional strength without unnecessary weight, creating a knife that's both durable and comfortable in hand. Precision machining provides a secure grip and excellent control while maintaining a clean, streamlined profile. At just 5.2 ounces, the Hydra V4 offers substantial feel without becoming cumbersome during extended carry or use.
Designed specifically for right-handed users, the Hydra V4 includes a tip-down pocket clip that keeps the knife secure, accessible, and ready whenever you need it. Measuring 9.125 inches overall, it strikes an ideal balance between reach, cutting capability, and everyday portability.
Whether you're adding a flagship automatic to your collection or carrying a premium OTF built to perform under demanding conditions, the redesigned Heretic Hydra V4 delivers elite materials, precision craftsmanship, and unmistakable performance in every deployment. It's a knife built for those who expect excellence every time they press the button.
Available at Smoky Mountain Knife Works, a Tennessee landmark and the world’s largest knife store.
