Bear OPS Bear Song IV Butterfly Arctic White w/Trainer (4.38" Black)

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MSRP: $199.99
Our Price: $74.99
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Item #BHQ-79336


  • Overall Length:9.75"
  • Blade Length:4.375"
  • Blade Material:1095
  • Hardness:58-60 RC
  • Blade Style:Spear Point, Trainer
  • Blade Grind:Hollow
  • Finish:Black
  • Edge Type:Plain
  • Handle Length:5.375"
  • Handle Material:Aluminum
  • Color:White
  • Weight:4.48 oz.
  • Knife Type:Butterfly
  • Brand:Bear Ops
  • Model:Bear Song IV
  • Model Number:B-400-AIW-B+TR
  • Country of Origin:USA
  • Best Use:Recreation
  • Product Type:Knife


This Bear Song IV model comes equipped with an arctic white handle and a black finished blade.

The B-400 training model features a regular sharpened blade and an alternate dull training blade that can be swapped using a T10 Torx bit. Lightweight aluminum handles come standard on the B-400. The sharpened blade comes in a modified clip point style, made from 1095 steel with a black finish. Item includes a stainless steel latch.

The Bear-Song butterfly knife from Bear Ops was designed by BladeRunnerS aka BRS. It offers a durable design and smooth flipping action. Be sure to check out the video below of the knife in action.


Customer Reviews

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Worst knife
Dylan F.
The worst quality of a balisong Iíve ever had. Not worth the money.
Eric L.
The knife moves well when flipping but comes loose quite quickly requiring constant tightening. If it were to stay tight I woiluld like this knife a lot, but it simply don't stay.
Blade HQ response:
We're very sorry to hear about the trouble you're having. Have you contacted our customer service department yet ( We'd like to help you get this resolved. Thanks -BHQ