Heretic Hydra V4 Carbon Fiber 3.5 inch 20CV Tanto Automatic OTF Knife, DLC Blade, Titanium Accents – Made in USA (H406-6A-CF/FTI)

A Limited Edition Hydra V4 Built with Premium Materials from Top to Bottom

The Heretic Limited Carbon Fiber Hydra V4 is a serialized, small-batch release of Heretic’s newest generation Hydra, built to showcase premium materials and aggressive performance. This version features a 3.5 inch DLC coated tanto blade made from 20CV Super Steel, chosen for its excellent edge retention, high wear resistance, and strong corrosion resistance. The blade rides in a full carbon fiber chassis, keeping the knife remarkably light while maintaining the strength expected from a top-tier OTF.

This limited run goes beyond just blade steel. Every detail is elevated, including a hand-flamed titanium button cover, a matching titanium charging plate, and Heretic’s signature machined rollerball pocket clip, a favorite among collectors. Both the knife and the steel itself are limited, making this Hydra V4 a standout piece for users and collectors alike.

Note from Lone Star Knife & Supply

This is the kind of Hydra that turns heads instantly. The carbon fiber chassis keeps it light, the DLC tanto blade looks mean, and the titanium accents tie everything together. It feels purpose-built, but refined at the same time. These are not going to last.

Standout Features

• 3.5 inch 20CV tanto blade, excellent edge retention and wear resistance
• Black DLC blade finish, durable and low reflectivity
• Automatic OTF action, fast, powerful, and reliable
• Full carbon fiber handle chassis, ultra-lightweight and strong
• Hand-flamed titanium button cover, unique to each knife
• Titanium charging plate and machined rollerball clip, premium finishing throughout
• Limited edition serialized run, steel and configuration are both limited
• Made in the USA, manufactured by Heretic Knives

Specifications

• Model: Hydra V4 Limited Carbon Fiber
• Model Number: H406-6A-CF/FTI
• Blade Length: 3.5 inches
• Blade Steel: CPM 20CV
• Blade Style: Tanto
• Blade Finish: DLC
• Handle Material: Carbon fiber with titanium accents
• Opening Method: Automatic OTF
• Lock Type: OTF internal lock system
• Pocket Clip: Machined rollerball clip
• Country of Origin: USA
• Package Type: Boxed
• Serialization: Yes

Why You’ll Want It

The Limited Carbon Fiber Hydra V4 blends cutting-edge materials with Heretic’s bold design language. With premium steel, carbon fiber construction, and titanium details throughout, this knife delivers both performance and presence. It is a modern OTF built to be used, collected, and talked about, and once this run is gone, it is gone.