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Bear OPS B-400-AlBK-B Bear Song IV Balisong Butterfly Knife, 1095 Carbon Black Blade
Bear OPS B-400-AlBK-B Bear Song IV Balisong Butterfly Knife, 1095 Carbon Black Blade

List Price: $153.49
Our Price: $99.95

Stock Status:In Stock

Product Code: BCB-400-AIBK-B

Bear OPS is a tactically-inspired division of the Bear & Son Cutlery brand with a sole mission of providing top-end products for those who serve. These products are 100% Berry Compliant--offering USA-only manufactured parts, materials and labor. Offered in a wide variety of sizes, colors and finishes, these Bear OPS models are a product of a collaborative effort between BladeRunner Systems (BRS) and Bear & Son and feature a swappable closing latch in addition to the screw construction which offers the added convenience of adjustment. Furthermore the double tang pin design promotes ideal performance and each blade rides fluidly on bronze phosphorus washers and precision ball bearing surfaces. This model, B-400-AlBK-B, features black aircraft aluminum handles, a drop point style blade in a black powder coated finish and there is no pocket clip feature. Made in the USA.


  • Blade Length: 4.375"
  • Overall Length: 9.75"
  • Blade Material: 1095 Carbon Steel
  • Blade Finish: Black
  • Handle Length: 5.375"
  • Handle Material: 6061-T6 Aluminum
  • Weight: 4.6 oz.

Average Customer Review: 3 of 5 Total Reviews: 1

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  2 of 3 people found the following review helpful:
Bear Ops Song IV Review May 17, 2016
Reviewer: Sigifredo Gutierrez from Bagdad, KY United States  
Not the best flipper, within the first day of using it both sets of the tang pins fell out at different times. The solution, Loctite Threadlocker 242. After a few days of flipping i noticed that both handles were becoming loose. I applied threadlocker to the handles screws and let it cure for a full 24 hours, the handles still loosened up after some use. The latch can be a bit bothersome when flipping the knife and the handles loosen up, it will land in the closed position due to the handles loosening up and no longer needing some pressure to bring the handles close enough to set the latch in the closed position. In terms of looks, i love the black finish on the blade and handles along with the design of the knife. The knife out of the box isn't very sharp, it feels fairly dull but it will cut. At 4.5oz i think that its not to heavy nor light for me, its all preference.

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