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Pro-Tech TR-4.1 Tactical Response 4 Auto Knife, 154CM Stonewash Blade

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The TR (Tactical Response) series by Pro-Tech is one of many automatic knife models they offer that blends the finest materials available with a supreme commitment to craftsmanship. Each small hand-crafted batch is built with the most modern high-tech manufacturing practices from the standard production models to their highly sought-after custom knives. This side open auto model opens with incredible speed and showcases a rock-solid lockup and the multiple jimping locations and pronounced finger grooves promote increased traction with any style grip. This model, the TR-4.1, features a black anodized aircraft aluminum handle with an integrated slide safety coupled with a drop point style blade in a stonewash finish with satin flats. Furthermore, this model includes a stainless steel back spacer that protrudes through the base to form a rear strike pommel or glass breaker function. Because of the size, this knife comes with a heavy duty nylon sheath with an integrated belt loop carry design and the pocket clip is statically designed for tip up carry only on the traditional side of the handle. Made in the USA.


  • Blade Length: 4"
  • Overall Length: 9.25"
  • Blade Material: 154CM Stainless Steel
  • Blade Finish: Stonewash / Satin
  • Handle Length: 5.25"
  • Handle Material: 6061-T6 Aluminum
  • Weight: 5.5 oz.
  • Sheath: Nylon
  • Sheath Weight: 2.0 oz.


  • TR4

    Posted by T on Apr 13th 2021


    Love this blade! The fit and finish are what you’d expect from protech, excellent! I was looking to replace a benchmade seibert Adamas. The Adamas is a great blade too, but too bulky and heavy. The TR4 is just as heavy duty, with a slim profile and lighter. Carries well, and also had a safety, which I wanted.