Protech TR-4 Limited Edition Johnny Skull Automatic Knife (4" Black) J10R

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MSRP: $475.00
Our Price: $329.95
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Item #BHQ-68018


  • Overall Length:9.25"
  • Blade Length:4.00"
  • Cutting Edge:3.50"
  • Blade Thickness:0.13"
  • Blade Material:D2
  • Blade Style:Drop Point
  • Blade Grind:Flat
  • Finish:Black
  • Edge Type:Plain
  • Handle Length:5.25"
  • Handle Thickness:0.50"
  • Handle Material:Aluminum
  • Color:Black
  • Frame/Liner:Aluminum
  • Weight:5.86 oz.
  • User:Right Hand
  • Pocket Clip:Tip-Up
  • Sheath:Nylon
  • Knife Type:Automatic
  • Opener:Push Button
  • Lock Type:Plunge Lock
  • Brand:Protech
  • Model:TR-4
  • Model Number:TR-4.J10R
  • Country of Origin:USA
  • Best Use:Tactical
  • Product Type:Knife


This Limited Edition Protech TR-4 features a Johnny 10 Rings sterling skull and a classy black lip pearl push button inlay. It sports a two-tone black/satin backspacer and a braided skull bead paracord lanyard. The blade is CPM-D2 steel with a black DLC finish and a plain edge. This is a limited Custom Sterling Edition of 200 knives.

The Protech TR-4 is a whole new take on their popular Tactical Response line. It incorporates a much requested sliding safety on the front of the handle. The TR-4 is a knife that will not let you down. It fires hard, locks up like a rock, and feel great. The TR-4 has a pocket clip, lanyard skull bead and includes a black nylon sheath.


Customer Reviews

Write a review for this item
Great knife. Love my Protech knives
Jeff D.
I purchased this one because I gave my Les George skull auto to my son. And I missed it everyday. They didn't have that one anymore so this was my replacement. It's bigger than the last one. Very happy with my knife. I had a small issue with it and BladeHQ directed me to Protech and they have the knife now, at no charge, taking care of it. Great service from both companies. I have purchased 4 protech knives total. Highly recommended.