Skip to content
  • 🔥 Once a year! Use Save up $10.00, Code:IMTAQX to snag Black Friday deals before time’s up!
  • 🔥 Once a year! Use Save up $10.00, Code:IMTAQX to snag Black Friday deals before time’s up!
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 / Microtech (Auto)
  • Microtech Socom Elite S/E Automatic Knife Blue (4" Stonewash Ser) 160A-11BL -Knives Online Store Microtech Socom Elite SE Auto Blue SW Serr 160A 11BL BHQ 106937 jr
  • Microtech Marfione Custom Stitch Auto Knife Borka Carbon Fiber (TT Hardware) -Knives Online Store Microtech Marfione Custom Stictch Auto Borka CF Satin Textured BHQ 176003 jr
-58%
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL - Image 2
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL - Image 3
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL - Image 4
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL -Knives Online Store Microtech LUDT Auto Blue Satin 135 4BL BHQ 72399 jr spine
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL -Knives Online Store Microtech LUDT Auto Blue Satin 135 4BL BHQ 72399 jr side
Microtech LUDT Automatic Knife Blue (3.4" Satin) 135-4BL -Knives Online Store Microtech LUDT Auto Blue Satin 135 4BL BHQ 72399 jr bottlecap

Microtech LUDT Automatic Knife Blue (3.4″ Satin) 135-4BL

$238.00 Original price was: $238.00.$99.99Current price is: $99.99.

Buy Now
SKU: BHQ-72399 Categories: Automatic Knives, Microtech (Auto) Tag: Microtech
  • 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)

Features:

  • Satin-finished drop point blade made from premium steel.
  • Push button opener for one-handed automatic firing.
  • Milled blue anodized aluminum handle.
  • Secure button lock.
  • Tip-up pocket clip and a lanyard loop.

Description:

Notable changes to the LUDT automatic knife can be seen throughout, but the most prominent difference is the revised blade profile, with a notched thumb ramp and smooth crowned spine. New-school Tri-Angle hardware and a slick recessed pivot assembly add a fine touch, along with the addition of a hole for lanyard attachment.

Throwback style is seen in the milled grooves of the tapered 6061-T6 aluminum handle, which dates back to the early-2000 era models. The LUDT is what we deem “affordable excellence.” It combines precision manufacturing, premium materials, and a timeless design.


A little over 20 years ago Anthony Marfione introduced the U.D.T. (Underwater Demolition Team), a compact automatic folder that was an instant hit among knife enthusiasts. The Large UDT, or LUDT, followed shortly thereafter and has been around intermittently ever since.

Overall Length

8.00"

User

Right Hand

Best Use

Tactical

Country of Origin

USA

Model Number

135-4BL

Model

LUDT

Brand

Microtech

Lock Type

Button Lock

Opener

Push Button

Knife Type

Automatic

Pocket Clip

Tip-Up

Weight

3.61 oz.

Blade Length

3.375"

Color

Blue

Handle Material

Aluminum

Handle Thickness

0.48"

Handle Length

4.625"

Edge Type

Plain

Finish

Satin

Blade Grind

Flat

Blade Style

Drop Point

Blade Material

CTS 204P

Blade Thickness

0.13"

Product Type

Knife

Reviews

There are no reviews yet.

Be the first to review “Microtech LUDT Automatic Knife Blue (3.4″ Satin) 135-4BL” Cancel reply

Related products

-69%
Microtech Socom Alpha Mini Warcom Fixed Blade Knife Black Carbon Fi (3.7" DLC)
Quick View

Microtech Socom Alpha Mini Warcom Fixed Blade Knife Black Carbon Fi (3.7″ DLC)

$320.00 Original price was: $320.00.$97.99Current price is: $97.99.
-67%
Microtech A.D.O. Knife Zombie Green D/E Dagger Fixed Blade (4.5" Plain) 115-1Z
Quick View

Microtech A.D.O. Knife Zombie Green D/E Dagger Fixed Blade (4.5″ Plain) 115-1Z

$295.32 Original price was: $295.32.$95.99Current price is: $95.99.
-63%
Microtech A.D.O. Tanto Knife T/E Fixed Blade (4.5" Tan Serr) 117-2TA
Quick View

Microtech A.D.O. Tanto Knife T/E Fixed Blade (4.5″ Tan Serr) 117-2TA

$268.57 Original price was: $268.57.$98.99Current price is: $98.99.
-65%
Microtech Vector Automatic Knife (3.95" Satin Serr) 132-5 2011 Model
Quick View

Microtech Vector Automatic Knife (3.95″ Satin Serr) 132-5 2011 Model

$278.20 Original price was: $278.20.$95.99Current price is: $95.99.
-63%
Microtech LUDT Automatic Knife Violet (3.4" Black Serr) 135-2VI
Quick View

Microtech LUDT Automatic Knife Violet (3.4″ Black Serr) 135-2VI

$270.27 Original price was: $270.27.$98.99Current price is: $98.99.
-69%
Microtech Currahee Tanto Knife Fixed Blade (4.5" Green) 103-1GR
Quick View

Microtech Currahee Tanto Knife Fixed Blade (4.5″ Green) 103-1GR

$315.00 Original price was: $315.00.$96.99Current price is: $96.99.
-71%
Microtech Currahee Tanto Knife Fixed Blade (4.5" Tan Serr) 103-2TA
Quick View

Microtech Currahee Tanto Knife Fixed Blade (4.5″ Tan Serr) 103-2TA

$339.34 Original price was: $339.34.$96.99Current price is: $96.99.
-61%
Microtech LUDT Automatic Knife Black (3.4" Black) 135-1
Quick View

Microtech LUDT Automatic Knife Black (3.4″ Black) 135-1

$249.00 Original price was: $249.00.$95.99Current price is: $95.99.
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 2025 © 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.