Benchmade Serum AXIS Dual-Action Automatic Knife G-10 (3.5" Satin Serr) 5400S

MSRP: $255.00
Our Price: $216.75
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Item #BHQ-24210


  • Overall Length:8.17"
  • Blade Length:3.47"
  • Blade Thickness:0.12"
  • Blade Material:154CM
  • Hardness:58-60 RC
  • Blade Style:Drop Point
  • Finish:Satin
  • Edge Type:Serrated
  • Handle Length:4.70"
  • Handle Thickness:0.58"
  • Handle Material:G-10
  • Color:Black
  • Frame/Liner:Stainless Steel
  • Weight:4.63 oz.
  • User:Right Hand, Left Hand
  • Pocket Clip:Tip-Up
  • Knife Type:Dual-Action Automatic
  • Opener:AXIS, Thumb Stud
  • Lock Type:AXIS®
  • Brand:Benchmade
  • Model:Serum
  • Model Number:5400S
  • Country of Origin:USA
  • Best Use:Tactical
  • Product Type:Knife


Marking the first application of the AXIS Dual-Action mechanism, the 5400 Serum is a notable addition to the Benchmade lineup. The AXIS Dual-Action mechanism functions like a regular AXIS lock for manual operation, but when the AXIS bar is fully pulled back the automatic mechanism deploys the blade. Benchmade has equipped the knife with a secondary safety system to eliminate "dry fire," which occurs when a blade isn't fully closed.

The Serum is a versatile setup with the ambidextrous AXIS Dual-Action mechanism, comfortably milled G-10 handle, and modified drop point blade. The 5400S has a satin finished 154-CM steel blade with a partially serrated edge and black G-10 handle with a reversible tip-up carry pocket clip. This is an outrageously clever knife from the crew at Benchmade.


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