Product Description

The Heretic Hydra V4 OTF H408-6A-BLU pairs a 3.625-inch CPM MagnaCut blade with a blue aluminum handle, bringing Heretic's proven push-button OTF mechanism to the Hydra platform in a clean, understated colorway.

CPM MagnaCut is Crucible's stainless steel engineered specifically for knife blades by metallurgist Larrin Thomas, rather than optimizing for one property, MagnaCut is formulated to deliver strong edge retention, corrosion resistance, and toughness simultaneously, closing the gap that usually forces a tradeoff between the three. Its balanced carbide structure keeps it easier to sharpen than extreme high-vanadium steels like CPM-S90V, while still outperforming older workhorse stainless steels like D2, 154CM, and CPM-S30V on corrosion resistance and edge stability.

The blue aluminum handle is a plain anodized finish on the Hydra V4 platform, giving the knife a clean, understated look distinct from Heretic's carbon fiber, camo, or Cel Shade configurations.

The out-the-front mechanism fires the blade straight out of the front of the handle at the push of a button and retracts it the same way, no manual flip, thumb stud, or disengage step required.

• Blade: 3.625" CPM MagnaCut blade, balanced edge retention, corrosion resistance, and toughness; blade grind, edge type, and profile not confirmed this session, verify against hereticknives.com.
• Handle: Blue anodized aluminum, plain finish distinct from Heretic's carbon fiber or camo configurations; handle texture not confirmed this session.
• Deployment: Out-the-front (OTF) automatic, push-button fire and retract, no manual disengage step; fully enclosed blade when closed.
• Carry: 3.625-inch blade platform on Heretic's Hydra V4 line, overall length, closed length, and weight not confirmed this session, verify against hereticknives.com before publishing.

Buyers who want the Hydra V4 platform in a clean, understated aluminum finish rather than carbon fiber or camo configurations.
CPM MagnaCut buyers who want strong all-around performance, edge retention, corrosion resistance, and toughness, without the sharpening difficulty of extreme high-vanadium stainless steels.
Collectors building out the Hydra V4 lineup who want the blue aluminum colorway alongside the Commando Edition and premium carbon fiber configurations.

CPM MagnaCut's balanced edge retention, corrosion resistance, and toughness in a push-button OTF platform, set in a clean blue aluminum handle, the Heretic Hydra V4 OTF H408-6A-BLU is built for buyers who want the Hydra platform without a premium material upcharge. Add the Heretic Hydra V4 OTF H408-6A-BLU (H408-6A-BLU) to your cart today and get same-or-next-business-day shipping from Columbia, Louisiana. Questions? Call 888-225-9775, we carry these knives daily.