Pro-Tech Dark Angel Single Action OTF

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Single Action Out the FRONT Knife – Sleek, Lightweight, Fast and Double Edged – The Dark Angel is an elegant single action out the front automatic knife with a 3.75” blade.  The Dark Angel uses a constant tension compression spring – so the auto out action is smooth and uninterrupted.  To re-set the knife, push the button to unlock and pull back on the convenient charing bar.  Slide safety switch, deep carry pocket clip, and nylon sheath are included on every Dark Angel.  Available in a variety of finishes and occasionally custom variations.

Black handle, DLC Black Blade


  • Knife Category: Automatic OTF Knife
  • Blade Style: Dagger
  • Action: Out The Front Open Automatic
  • Blade Length: 3 5/8"
  • Open Length: 8 7/8"
  • Closed Length: 4 1/2"
  • Weight: 3.4 Ounces

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If your Viper Tec Knife has a defect in materials or workmanship, we will fix or replace them to get you back with your knife as soon as we can. 

ViperTec Knives will not warranty products due to loss by theft or accident, damage caused by abuse, neglect, misuse, accident, improper blade sharpening, normal wear and tear including paint loss, fading, discoloration, or chips, introduction of foreign substances, or disassembly. Do not use your knife as a pry bar, screwdriver, chisel, or punch. Do not throw your knife. ViperTec Knives will not warranty blades or handles that are twisted, bent, chipped, gouged, warped, or have had finishes removed. Use of ViperTec knives for any purpose other than cutting is considered abuse and will void the warranty.

The term “Lifetime” refers to the lifetime of the product. This doesn’t mean your lifetime or ours, but rather the lifetime of the components and materials. All materials degrade over time with use and exposure to the elements and a product’s lifetime is a function of how much use it gets and how well it is cared for and not by how it is.