Bear OPS Bear Song IV Butterfly Knife Aluminum (4.38" Damascus) B-400-LD

MSRP: $225.00
Our Price: $119.95
Out of Stock
Try instead
Email Me when this item is in stock.
Item #BHQ-18008 Online Only


  • Overall Length:9.75"
  • Blade Length:4.375"
  • Cutting Edge:3.75"
  • Blade Thickness:0.13"
  • Blade Material:Damascus
  • Blade Style:Drop Point
  • Blade Grind:Hollow
  • Edge Type:Plain
  • Handle Length:5.375"
  • Closed Length:5.875"
  • Handle Thickness:0.57"
  • Handle Material:Aluminum
  • Color:Gray
  • Weight:4.50 oz.
  • Knife Type:Butterfly
  • Brand:Bear Ops
  • Model:Bear Song IV
  • Model Number:B-400-LD, 36003
  • Country of Origin:USA
  • Best Use:Collection
  • Finish:Damascus
  • Product Type:Knife


Be sure to view our other Bear Butterfly Knives in stock!

The Bear Song IV butterfly knife is a collaboration between BladeRunnerS (BRS) and Bear OPS. The B-400 flipper features natural finished aluminum handles with stainless steel spacers and a swappable latch. The pivots have 304 bearing surfaces and phosphorus bronze washers. The blade on this model features beautiful Damascus steel.


Customer Reviews

Write a review for this item
i like it
isaac j.
I have had this knife for over a year.. Its a great flipper when the screws stay in. I don't like how the screws just come loose out of no where. I have tried every type of lactate on the bali but it dosent seem to help..
its ok
shane b.
Overall I was not impresed with this knife. Its awkward to flip due to the handels being too light and too thick and you will have to locktite every screw before you use it or they will come loose. After flipping it a while the aluminium rubs off on your hand turning them black and is hard to wash off. The Damascus blade is cool but overall I don't think its a good butterfly. Blade HQ is great though