Home > Automatic Knives > Protech Automatics >

Pro-Tech 4405 Runt J4 Cali-Legal Auto Knife, Carbon Fiber, 154CM Black Blade
Pro-Tech 4405 Runt J4 Cali-Legal Auto Knife, Carbon Fiber, 154CM Black Blade

Alternative Views:

List Price: $190.00
Our Price: $129.95

Stock Status:In Stock

Product Code: PT4405

The Runt J4 series is where the Pro-Tech "Cali-Legal" category of automatic knives all began. This side open auto model opens with incredible speed and showcases a rock-solid lockup and offers a contoured handle coupled with shallow finger grooves to assist with maintaining complete control over your knife. This model features a black anodized aircraft aluminum handle complete with carbon fiber inlays, a drop point style blade in a DLC (Diamond Like Carbon) black finish and the pocket clip is statically designed for tip down carry only on the traditional side of the handle. Made in the USA.

"Cali-Legal" is a term that refers to the blade length that must be at or below the 2" mark while utilizing an automatic function and is by no means legal advice or a legal definition.


  • Blade Length: 1.95"
  • Overall Length: 5.3"
  • Blade Material: 154CM Stainless Steel
  • Blade Finish: DLC Black
  • Handle Length: 3.35"
  • Handle Material: 6061-T6 Aluminum / Carbon Fiber
  • Weight: 2 oz.

Share your knowledge of this product. Be the first to write a review »

Browse for more products in the same category as this item:

Automatic Knives > Protech Automatics
Automatic Knives > Automatics $50-150
Pro-Tech Knives > Pro-Tech Runt Knives
Automatic Knives
$100.00 and up
Pro-Tech Knives
New Arrivals
Pro-Tech Knives > Pro-Tech Runt Knives > Pro-Tech Runt J4