Pro-Tech TR-5 Tactical Response Automatic Knife Black (3.25" Black) T503

Item #BHQ-82711
MSRP: $320.00
Our Price: $239.95
Out of Stock
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  • Overall Length: 7.625"
  • Blade Length: 3.25"
  • Cutting Edge: 2.875"
  • Blade Thickness: 0.13"
  • Blade Material: CPM S35VN
  • Blade Style: Drop Point
  • Blade Grind: Flat
  • Finish: Black
  • Edge Type: Plain
  • Handle Length: 4.375"
  • Handle Thickness: 0.48"
  • Handle Material: Aluminum
  • Color: Black
  • Weight: 3.45 oz.
  • User: Right Hand
  • Pocket Clip: Tip-Up
  • Knife Type: Automatic
  • Opener: Push Button
  • Lock Type: Button Lock
  • Brand: Pro-Tech
  • Model: TR-5 Automatic
  • Model Number: T503
  • Country of Origin: USA
  • Best Use: Everyday Carry, Tactical
  • Product Type: Knife

  • Black DLC drop point blade made from CPM S35VN stainless steel.
  • Push button opener with automatic action.
  • Black-anodized aluminum handle.
  • Button lock that offers solid lock-up.
  • Deep-carry, right-side pocket clip with recessed screws.


The Pro-Tech Tactical Response 5 (TR-5) is one Pro-Tech's most popular models—and for good reason! It offers a solid four-finger grip with finger grooves that enhance comfort and grip security during use, and its blade flips out with Pro-Tech's renowned authoritative automatic action. It's made in the USA from high-functioning materials to an exacting standard. If you're looking to supplement your kit with an automatic knife, it's hard to recommend one higher than the TR-5.

Browse Pro-tech's other Tactical Response knives. These knives are worthy additions to any collection and reliable, EDC pocket companions.

Customer Reviews

A perfect edc knife
John B. on Jun 6, 2018

This is an awesome edc auto knife. The blade shape which I am a big fan of is an all purpose design. The blade steel CPM-S35VN holds its edge far longer than CPM-154. The automatic action is flawless with the blade opening quickly without any recoil and the overall size is just right for edc. When I think I’m going to need a larger blade I take my TR-4. Now for slight cons. The black coating is not as smooth as a plain blade so it drags a bit cutting cardboard. However I’m sure it will smooth out with use. Also the activation button initially feels like dragging a brick over gravel, rough and bumpy. ( I have found this to be true of all new Pro tech autos. I have three.) BUT it is smoothing out with use. ( If you push the buttons quick you don’t feeling anything.) So if you are thinking about it do you won’t regret it. 8 months later it is even better. The button has smoothed out tremendously as has the blade. Also I can get it razor sharp with just a ceramic rod. My arms can attest to that as I have bald patches where I have tested the edge. It is my favorite and I feel naked if I don’t have it with me.

Love it!!
David S. on Aug 13, 2020

I love this knife. It is a little smaller than I was expecting. I have a Newport and it feels very similar in hand. I love the deep carry pocket clip and of course the legendary Protech SNAP when you push the button. Home run.

Protech Masterpiece
Kevin C. P. on Oct 15, 2019

I love the size & feel of this knife in my hand. Perfect in every way! The quality and materials are top of the line. This knife will last a lifetime. When they make the TR4 in S35VN, I'll be getting one of those too. Buy one today. You won't be disappointed.

A solid auto with crazy fast action
June E. on Sep 5, 2019

This knife is very well made. It's definitely ready for a hard use. The blade is solid, sharp and straight. The handle is very sturdy. You can't go wrong with a Protech knife

Amazing EDC Auto
Michael V. on Oct 5, 2020

This was my first ProTech Auto and I am now a true believer. The Pro-Tech Auto 5 is smaller than I expected with a smaller blade profile compared to 3.25 Blades from Benchmade or Spyderco, but hey it's a great EDC size. The knife opens with authority, and sharp as anything right out of the box! Historically I usually only buy Benchmade, Spyderco and Zero ProTech has been added to that list. Check this blade out, you will not be disappointed!!

Nearly A Five Star Rating
Matt N. on Aug 24, 2020

I am very impressed with this my first Protech knife. The action is legendary for a reason; certainly a great snap with no blade play or bounce. The lockup is flawless, the blade perfectly centered, and it oozes quality. The TR-5 feels like it was made for my hand, the ergos are great; not only that but the weight is very reasonable. The only reason I am leaving a four star rating is that the blade wasn't quite as sharp as I was expecting. I have received much lesser knives that were sharper out of the box - not that this is dull by any means; it just wasn't shaving sharp.

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