Kizer CK Critical Flipper Frame Lock Knife (3.6" Stonewash) Ki4508

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MSRP: $290.00
Our Price: $203.00
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Item #BHQ-71898


  • Overall Length:8.64"
  • Blade Length:3.59"
  • Blade Thickness:0.16"
  • Blade Material:CPM-S35VN
  • Blade Style:Wharncliffe
  • Finish:Stonewash
  • Edge Type:Plain
  • Handle Length:5.05"
  • Handle Thickness:0.50"
  • Handle Material:Titanium
  • Color:Gray
  • Weight:6.27 oz.
  • User:Right Hand
  • Pocket Clip:Tip-Up
  • Knife Type:Manual
  • Opener:Flipper
  • Lock Type:Frame Lock
  • Brand:Kizer
  • Model:Critical
  • Model Number:Ki4508
  • Designer:Matthew Christensen
  • Country of Origin:China
  • Best Use:Everyday Carry
  • Product Type:Knife


The Christensen Knifeworks designed Critical folder is a bold collaboration with Kizer Cutlery. It offers an all-business wharncliffe blade made from CPM-S35VN stainless steel with a thick swedge and ample jimping. The ergonomic titanium frame lock handle is designed with a row of circular cutouts to ensure the Critical won't weigh you down. Anodized pivot collars, a blue anodized titanium backspacer, and a familiar titanium pocket clip have been added for a bit of custom flair.

  • CPM-S35VN blade steel provides outstanding strength, edge retention, and corrosion resistance.
  • Slim titanium handles offer a durable, high performance grip, that is comfortable in the hand or pocket.
  • Blade flipper for rapid blade deployment with a ceramic bearing pivot.

Customer Reviews

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Amazing Knife
Mike E.
I have a few Kizer Knives but this knife in hand feels amazing and itís hard to put down. Every one that has had the chance to hold this knife and feel the craftsmanship is absolutely amazed with the cost of this blade. Right down to the packaging the knife came in Kizer Knives are worth the money.. Highly recommend this knife....🗡
Everyone needs a Critcal
Al W.
Incredible action, smooth fit, with a great finish. The blade is very hefty and cuts with ease. Absolutely incredible right out of the box. The CPM-S35VN blade is perfect for any cutting task but with the design comes a whole lot more opportunity. The design is very sleek, feels very natural in the hand, and very intuitive. From the titanium handles, to the anodized pivot collar, and back spacer, this knife is a real eye catcher. I highly recommend this purchase as you will be far from disappointed. I personally love the flipper model over the thumb stud, but that is subjective. I can be brutally honest and tell you that making this purchase on a Kizer critical will be well worth the hard earned money.
Very good
Shawn K.
Personally I prefer a slightly stronger detent but this thing glides open with ease so it still works, just doesn't feel so great.

The handle design is slightly off for my hands but not a deal breaker. The pointy part at the back might be annoying if you have larger hands where the knife fits fully in your palm.

The overall look is a little more plain in person than on the website, the blade in particular lacked some of the depth the site photos seem to show it as having. Still the blade is probably the high point visually.

If it had a stronger detent I'd probably give a 5, its just so soft I don't feel totally confident on getting it open.

It's an imperfect but still a nicely made $200 knife.

Great knife for the cash.
Matt L.
I've had this knife for a total of three days and I can't put it down. Came in some really nice packaging and was shaving sharp out of the box. Fit and finish are top notch with the only exception being the anodizing on the back spacer has already started to wear through. Lockup is nice and early with zero blade play. Not a bad blade for the money and if you are a fan of Christiansan knifes but can't get one this is a nice alternative.