Description
⚡ Venom S1 Delta D/A OTF Knife – Tactical Black Spartan
Black Spartan Blade • Stealth Automatic Power • Full Black Tactical Build

Power. Precision. Authority.
The Venom S1 Delta D/A OTF Knife by Venom USA is built for users who demand decisive deployment, rugged dependability, and commanding cutting performance. Featuring an aggressive all-black Spartan blade and full blackout construction, this double-action automatic delivers smooth, confident operation in a sleek, mission-ready platform engineered for real-world reliability.
🔥 Stealth Performance You Can Feel
Experience fast, controlled response with the double-action OTF mechanism — allowing seamless blade deployment and retraction in one fluid motion.
The 3.25" Black Spartan Blade is engineered for strength, penetration, and authoritative cutting power:
⚔ Razor-sharp slicing performance with reinforced edge geometry
🔺 Hardened Spartan tip for superior piercing strength and durability
🛡 Wide blade profile for added structural strength and stability
⚡ Balanced design for confident control and precision
Full Tactical Blackout Design
This model features a true all-black tactical configuration — black Spartan blade, black hardware, and black aluminum handle — creating a low-reflection, stealth-driven appearance built for serious users. Clean, aggressive, and purpose-built, the blackout design embodies pure tactical performance.
As a Venom USA product, the S1 Delta OTF represents precision engineering, durable construction, and smooth automatic reliability — built for those who expect speed, strength, and total control.
💥 Why Choose the Venom S1 Delta Black Spartan OTF?
✔ Authentic Venom USA craftsmanship
✔ Fast, smooth double-action automatic deployment
✔ Reinforced Spartan blade for strength and piercing power
✔ Non-reflective black finish for stealth carry
✔ Durable all-black hardware and aluminum construction
✔ Compact, balanced 9.0" tactical profile
📊 Specifications
| Feature | Specification |
|---|---|
| Model & Brand | Venom USA – S1 Delta OTF |
| Knife Type | Double-Action Automatic OTF |
| Overall Length | 9.00" w/ Glass Breaker |
| Blade Length / Thickness | 3.25" / 0.12" |
| Blade Material | 440C Stainless Steel |
| Blade Style / Grind | Spartan / Flat |
| Blade Finish | Black |
| Hardware | Black |
| Handle Material | Machined Aluminum – Black |
| Lock Type | Internal OTF Mechanism |
| Weight | 8.0 oz |





