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by UPKnife

D4-AL Black Hard-Coat 7075-T6 Aluminum Blade

$49.95 $51.90

available as an UPGRADE KIT

This can be used to UPGRADE or replace a D-Series Blade, notably converting a Red Polymer Blade on an Polymer Trainer to have a stronger Blade with an all BLACK appearance.

Alternatively it can be used to convert a Fully Stainless Thrower Edition to have a lightweight Black anodized Blade, noting it is a reduction in strength, but still strong enough for EDC duty carry.

Compatible with:

UPK-D1, D2, and D4

Handle Material Comparison (Tensile Strength)

  • 440A Stainless Steel 220+ ksi 
  • Black 7075-T6 Aluminum 70 ksi
  • Red 50% Glass-filled Nylon 9 ksi


  • Requires Torx T20 Driver to remove screws (Not Included)
  • There are 2 stainless springs located under/inside the Button, maintain pressure on button when loosening the Lock screw,  recommend  opening slowly.
  • Upgrade requires the use of Loctite 243 in all 3 instances of hardware screws and is included

What's Included

Black Blade Kit (uses existing Hardware)

  • Black Hard-Coat Anodized 7075-T6 Blade
  • Loctite 243 0.5ml

    Dash Dispatch

    All orders placed before 1pm PST Monday to Friday are typically dispatched same day.

    In-Stock orders ship within 1 business day

    Back-order items ship in 6 weeks and usually under. Please contact if you have delivery circumtances.

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    Satisfaction Guarantee!

    You have 30 days from receiving your order to return or exchange it FREE OF CHARGE.

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