Bear OPS Song IV Carbon Fiber Balisong Butterfly Knife - Satin Plain

Retail Price: $145.00
Our Price: $93.99
Out of Stock
Item #BP-13631


  • Overall Length:9.75"
  • Blade Length:4.375"
  • Blade Material:Sandvik 14C28N
  • Hardness:58-60 RC
  • Blade Style:Clip Point
  • Blade Grind:Hollow
  • Finish:Satin
  • Edge Type:Plain
  • Handle Length:5.375"
  • Handle Material:Aluminum
  • Color:Black
  • Weight:4.40 oz.
  • Knife Type:Butterfly
  • Brand:Bear
  • Model:Bear Song IV
  • Model Number:B-400-AICF-S 35017
  • Country of Origin:USA
  • Best Use:Recreation
  • Product Type:Knife


The Bear Song IV butterfly knife is the newest collaboration between BladeRunnerS (BRS) and Bear OPS. This B-400 model features aluminum handles with a simulated carbon fiber laminate. Stainless steel spacers and a swappable latch. The pivots have 304 bearing surfaces and phosphorus bronze washers. The satin finished stainless steel clip point blade has a double tang pin design for great performance. It is a lightweight flipper that is designed to be your go-to everyday carry knife.


Customer Reviews

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Hande Play!
Pyro D.
I loved this knife for 10 minutes. The I began to realize how much handle play there was. The latch at times would actually go over the edge of one of the handles, and stop me from opening or closing the knife. Very disappointing, Hoping it's just a lemon though.

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