Skip to content
by UPKnife

UPK-D4 Hybrid SS-Poly

Sale
$89.95 $102.00

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-D1 Pocket Sai has a HARDENED STAINLESS STEEL Blade and a Composite Polymer Handle

Hybrid Thrower - The combo of a hardened stainless blade with a Polymer handle provides a tough throwable Pocket Sai for practice and training at a reduced cost. A blade made in 440A high carbon martensitic stainless steel with a hardness of HRC40-44 makes a tough resilient stainless made for throwing and can take extreme abuse offering bending where harder alloys will break. This combination is a notable upgrade from the Full Polymer trainer.

Material Specifications:

  • Blade Milled from 440A Stainless Steel
    • Heat Treated to 40-44 HRC
    • 220+ ksi Tensile Strength
  • Handle made in POLYMER
    • 50% Glass-filled Nylon (gun frame material)
    • 9 ksi Tensile Strength
  • Custom Button made in Anodized Aluminum
    • 6061-T6 Aluminum with Red Anodize
  • 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

Dimensions

  • Extended length: 11.7 inches (297 mm)
  • Collapsed length: 7.3 inches (186 mm)
  • Weight: 4.0 oz.

      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.

      Learn more

      Satisfaction Guarantee!

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

      Learn more