Skip to content
  • 🎁 Buy gifts for everyone on your list during our snap sale!🎁
  • 🎁 Buy gifts for everyone on your list during our snap sale!🎁
Knives Online StoreKnives Online Store
  • Menu
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Fixed Blade Knives
    • Microtech (Fixed)
    • Buck (Fixed Blade)
    • Morakniv (Fixed)
    • TOPS Knives (Fixed Blade)
    • Benchmade (Fixed Blade)
    • CRKT (Fixed)
    • ESEE Knives (Fixed)
    • Olamic Cutlery (Fixed)
    • Real Steel (Fixed)
    • CIVIVI (Fixed)
    • Cold Steel (Fixed)
    • Fox Knives (Fixed)
    • Kershaw (Fixed)
    • Boker (Fixed Blade)
    • Gerber (Fixed)
  • Automatic Knives
    • Microtech (Auto)
    • Boker (Auto)
    • Kershaw (Auto)
    • SOG (Auto)
    • Pro-Tech (Auto)
    • CRKT (Auto)
    • Buck (Auto)
    • Gerber (Auto)
    • Benchmade (Auto)
    • Smith & Wesson (Auto)
  • Pocket Knives
    • Benchmade (Folding)
    • Gerber (Folding)
    • Cold Steel (Folding)
    • WE Knife Co. (Folding)
    • Kershaw (Folding)
    • CIVIVI (Folding)
    • CRKT (Folding)
    • ESEE (Folding)
    • Fox Knives (Folding)
    • Boker (Folding)
    • Real Steel (Folding)
    • Microtech (Folding)
    • Pro-Tech (Folding)
    • Bestech (Folding)
    • Schrade (Folding)
Home / Automatic Knives / Pro-Tech (Auto)
  • Emerson Pro-Tech CQC-7 Tanto Automatic Knife Tan Knurled (3.25" Black) -Knives Online Store protech emerson e7t32 cm
  • Pro-Tech TR-4 Automatic Knife Custom PK Vintage Uncle Sam (4" Black) -Knives Online Store Protech TR 4 Auto Custom PK Vintage Uncle Sam Black BHQ 107331 jr
-71%
Pro-Tech Damascus Custom Runt J4 Automatic Knife W/ Carbon Fiber 4400-D
Pro-Tech Damascus Custom Runt J4 Automatic Knife W/ Carbon Fiber 4400-D - Image 2
Pro-Tech Damascus Custom Runt J4 Automatic Knife W/ Carbon Fiber 4400-D -Knives Online Store protech 4400 d j4 runt damascus custom cf back

Pro-Tech Damascus Custom Runt J4 Automatic Knife W/ Carbon Fiber 4400-D

$339.00 Original price was: $339.00.$98.99Current price is: $98.99.

SKU: BHQ-11295 Categories: Automatic Knives, Pro-Tech (Auto) Tag: Pro-Tech
  • Control the delivery date and try to deliver it in the fastest time
  • Guaranteed High Quality
  • Shop with confidence, we guarantee quality.
  • Quality You Can Count On
Browse
  • Automatic Knives
    • Benchmade (Auto)
    • Boker (Auto)
    • Buck (Auto)
    • CRKT (Auto)
    • Gerber (Auto)
    • Kershaw (Auto)
    • Microtech (Auto)
    • Pro-Tech (Auto)
    • Smith & Wesson (Auto)
    • SOG (Auto)
  • Fixed Blade Knives
    • Benchmade (Fixed Blade)
    • Boker (Fixed Blade)
    • Buck (Fixed Blade)
    • CIVIVI (Fixed)
    • Cold Steel (Fixed)
    • CRKT (Fixed)
    • ESEE Knives (Fixed)
    • Fox Knives (Fixed)
    • Gerber (Fixed)
    • Kershaw (Fixed)
    • Microtech (Fixed)
    • Morakniv (Fixed)
    • Olamic Cutlery (Fixed)
    • Real Steel (Fixed)
    • TOPS Knives (Fixed Blade)
  • Pocket Knives
    • Benchmade (Folding)
    • Bestech (Folding)
    • Boker (Folding)
    • CIVIVI (Folding)
    • Cold Steel (Folding)
    • CRKT (Folding)
    • ESEE (Folding)
    • Fox Knives (Folding)
    • Gerber (Folding)
    • Kershaw (Folding)
    • Microtech (Folding)
    • Pro-Tech (Folding)
    • Real Steel (Folding)
    • Schrade (Folding)
    • WE Knife Co. (Folding)
  • Description
  • Additional information
  • Reviews (0)

This Limited Edition Custom Runt J4 features a Chad Nichols mosaic high carbon Damascus blade. The handle is silver aluminum with carbon fiber inlays and a matching push button insert. The pocket clip is satin finished titanium.

The Pro-Tech Runt J4 is an automatic knife with a 1.94″ California legal blade. The Runt opens with rocket force and has superb lockup. The tip-down carry pocket clip makes it a great choice for everyday carry.

Overall Length

5.27"

User

Right Hand

Finish

Damascus

Best Use

Everyday Carry

Country of Origin

USA

Model Number

4400-D

Model

Runt

Brand

Pro-Tech

Lock Type

Button Lock

Opener

Push Button

Knife Type

Automatic

Pocket Clip

Tip-Down

Weight

1.95 oz.

Blade Length

1.94"

Frame/Liner

Aluminum

Color

Black, Gray

Handle Material

Carbon Fiber

Handle Thickness

0.44"

Handle Length

3.33"

Edge Type

Plain

Blade Grind

Flat

Blade Style

Drop Point

Blade Material

Damascus

Blade Thickness

0.11"

Product Type

Knife

Reviews

There are no reviews yet.

Be the first to review “Pro-Tech Damascus Custom Runt J4 Automatic Knife W/ Carbon Fiber 4400-D” Cancel reply

Related products

-43%
Piranha Toxin Automatic Knife Silver (3.75" Black Serr)
Quick View

Piranha Toxin Automatic Knife Silver (3.75″ Black Serr)

$169.95 Original price was: $169.95.$96.99Current price is: $96.99.
-47%
Pro-Tech TR-3 Tactical Response Knife Blue Jazz + Grooves (3.5" Stonewash) J1
Quick View

Pro-Tech TR-3 Tactical Response Knife Blue Jazz + Grooves (3.5″ Stonewash) J1

$179.95 Original price was: $179.95.$95.99Current price is: $95.99.
-55%
Benchmade 5750BK Mini Presidio II Automatic Knife (3.2" Black)
Quick View

Benchmade 5750BK Mini Presidio II Automatic Knife (3.2″ Black)

$221.00 Original price was: $221.00.$99.99Current price is: $99.99.
-61%
Benchmade Auto Stryker 9101BK Automatic Knife Next Gen (3.6" Black)
Quick View

Benchmade Auto Stryker 9101BK Automatic Knife Next Gen (3.6″ Black)

$247.50 Original price was: $247.50.$95.99Current price is: $95.99.
-68%
Microtech Stitch-A S/E Automatic Knife Black (3.75" Black)
Quick View

Microtech Stitch-A S/E Automatic Knife Black (3.75″ Black)

$309.00 Original price was: $309.00.$97.99Current price is: $97.99.
-30%
Mikov 241 Predator Lever Lock Automatic Knife Stag Bayonet (3.75" Polish)
Quick View

Mikov 241 Predator Lever Lock Automatic Knife Stag Bayonet (3.75″ Polish)

$99.95 Original price was: $99.95.$69.97Current price is: $69.97.
-72%
Heretic Knives Medusa Tanto Automatic Knife Ti/Abalone Blued (3" Dama/Recurve)
Quick View

Heretic Knives Medusa Tanto Automatic Knife Ti/Abalone Blued (3″ Dama/Recurve)

$353.00 Original price was: $353.00.$98.99Current price is: $98.99.
-30%
Boker Magnum Drop Point Automatic Knife Champagne (3.25" Bead Blast) 01BO007
Quick View

Boker Magnum Drop Point Automatic Knife Champagne (3.25″ Bead Blast) 01BO007

$55.95 Original price was: $55.95.$39.17Current price is: $39.17.
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
ABOUT US
  • About Us
  • FAQ
  • Returns & Exchanges
  • Delivery
  • Contact Us
LEGAL
  • Privacy Policy
  • Payment Method
  • Shipping & Returns
  • Term and Conditions
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.fine-knives.com
    • Fixed Blade Knives
      • Microtech (Fixed)
      • Buck (Fixed Blade)
      • Morakniv (Fixed)
      • TOPS Knives (Fixed Blade)
      • Benchmade (Fixed Blade)
      • CRKT (Fixed)
      • ESEE Knives (Fixed)
      • Olamic Cutlery (Fixed)
      • Real Steel (Fixed)
      • CIVIVI (Fixed)
      • Cold Steel (Fixed)
      • Fox Knives (Fixed)
      • Kershaw (Fixed)
      • Boker (Fixed Blade)
      • Gerber (Fixed)
    • Automatic Knives
      • Microtech (Auto)
      • Boker (Auto)
      • Kershaw (Auto)
      • SOG (Auto)
      • Pro-Tech (Auto)
      • CRKT (Auto)
      • Buck (Auto)
      • Gerber (Auto)
      • Benchmade (Auto)
      • Smith & Wesson (Auto)
    • Pocket Knives
      • Benchmade (Folding)
      • Gerber (Folding)
      • Cold Steel (Folding)
      • WE Knife Co. (Folding)
      • Kershaw (Folding)
      • CIVIVI (Folding)
      • CRKT (Folding)
      • ESEE (Folding)
      • Fox Knives (Folding)
      • Boker (Folding)
      • Real Steel (Folding)
      • Microtech (Folding)
      • Pro-Tech (Folding)
      • Bestech (Folding)
      • Schrade (Folding)
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.