UPK-D4 Black Alloy Ed.

$89.95 $123.00

A minimal guard version of the Pocket Sai. The guards have been reduced to minimum amount of grip for blade retraction.

 This version of UPK-D4 Bayonet has a Black Hard-coat 7075-T6 Aluminum Blade and Handle

Black Hard-coat 7075-T6 Aluminum - Lightweight Aluminum with steel like strength, the 7075-T6 Tempered Aluminum is one of the strongest Aluminum alloys available with a tensile strength of about 74 ksi.  The Hard-coat Anodize provides a resilient protective surface. This material is a notable upgrade from the Glass-filled Polymer.

Material Specifications:

  • Blade Milled from 7075-T6 Aluminum
    • Hard-Coat Anodized Black
    • 74 ksi Tensile Strength
  • Handle made in POLYMER
    • Hard-Coat Anodized Black
    • 74 ksi Tensile Strength
  • Custom Button made in Anodized Aluminum
    • 6061-T6 Aluminum with Red Anodize
    • 7075-T6 Aluminum with Black Hardcoat
  • Custom Screws made in 450 Stainless steel
    • Heat Treated by Age Hardening to the H900 condition HRC 45
  • 301 Stainless Steel Springs
    • Cold work Hardened to a Spring Temper


  • Extended length: 11.7 inches (297 mm)
  • Collapsed length: 7.3 inches (186 mm)
  • Weight: 2.6 oz.