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Bear OPS AC-900-B4-B Bold Action IX G-10/Carbon Fiber Auto Knife, Black Blade

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The Bold Action IX knife is the next installment and one of several new automatic knives released by Bear & Son Cutlery/Bear OPS this year--upgrading to a partial carbon fiber frame. This line of push-button side-open automatic knives features an entire arsenal of knives that offer a more tactical look and feel. Offered in a wide variety of sizes, colors and finishes, these knives showcase ergonomic styling, rapid firing and a convenient slide safety to prevent accidental firing. This model features black G-10 handles coupled with carbon fiber bolsters, stainless steel liners, a drop point style blade in a black finish and the reversible pocket clip is designed for tip up carry only but is eligible for a left or right hand carry option. Made in the USA.


  • Blade Length: 2.75"
  • Overall Length: 6.5"
  • Blade Material: Sandvik 14C28N Stainless Steel
  • Blade Finish: Black
  • Handle Length: 3.75"
  • Handle Material: G-10 / Carbon Fiber
  • Weight: 2.4 oz.


  • Bear OPS

    Posted by Gary Haman on Apr 28th 2020


    The knife itself is fantastic. Be warned it is not a big knife. The action is smooth and lock sturdily in place. Overall great knife. Packaging of a knife that lost for 200 dollars is awful. You do cut either packages I know just pointing out if you want to be high end knife then the package should follow

  • Bear Ops AC-900-B4-B

    Posted by Lance on Mar 9th 2020


    Great lines and action. I feel the knife is well built and will last. Great looks. I gave it 4 stars because I feel it’s a bit on the small size. My fault for not checking specifics on size but I wish it was a little larger.

  • Bear ops AC 900

    Posted by Jerry L Sorrells on Feb 11th 2019


    Knife was not sharp as should be, the firing butten is sharp on sides. Now that said this knife is a 100.00 knife and I'm happy to put with the rest of my 100
    .00 knives. Bear makes a good knife but not a great knife. Semper Fi.