Kershaw Knockout Assisted Opening Knife Olive (3.25" Black) 1870OLBLK

Item #BHQ-21525
MSRP: $124.99
Our Price: $79.95
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  • Overall Length: 7.875"
  • Blade Length: 3.25"
  • Blade Thickness: 0.12"
  • Blade Material: Sandvik 14C28N
  • Blade Style: Drop Point
  • Blade Grind: Hollow
  • Finish: Black
  • Edge Type: Plain
  • Handle Length: 4.625"
  • Handle Thickness: 0.40"
  • Handle Material: Aluminum
  • Color: OD Green
  • Frame/Liner: Steel
  • Weight: 3.80 oz.
  • User: Right Hand, Left Hand
  • Pocket Clip: Tip-Up, Tip-Down
  • Knife Type: Spring Assisted
  • Opener: Flipper, Thumb Stud
  • Lock Type: Frame Lock
  • Brand: Kershaw
  • Model: Knockout
  • Model Number: 1870OLBLK
  • Country of Origin: USA
  • Best Use: Everyday Carry
  • Product Type: Knife

  • Sandvik 14C28N steel drop point blade with a black finish.
  • Flipper tab and thumb studs for SpeedSafe assisted opening.
  • OD green aluminum handle.
  • Secure sub-frame lock.
  • Four-way reversible pocket clip.


It's a Knockout in more ways than one. The Kershaw Knockout looks great, but the reason it bears this name is that a piece of the lightweight aluminum handle has been "knocked out" and inset with a stainless-steel plate to create a frame lock called the Sub-Frame Lock. You get the lightweight benefits of aluminum handles and the strength of a steel frame lock with integral lockbar stabilization. This Kershaw folder also features SpeedSafe assisted opening. It's equipped with the new deep-carry clip and is drilled for quad-carry: tip-up, tip-down, left- or right-handed.

Like the idea of a spring assisted knife? Check out our extensive collection!

Customer Reviews

Nick F. on Nov 23, 2019

If you are looking for a knife for under $100 it's simple, get this knife! It is by far the smoothest and most fun knife to open. The overall quality and ergonomics can not be beat. Simply, you can not go wrong with this knife!

I think I need another
ISAAC P. on Dec 5, 2019

I got this knife as one of my first kershaw blades and honestly that in and of itself makes me a little spoiled. I really love the simple styling ques. The style and lines are great enough to nudge their way into a pelican case among other ZT knives or the like. The knockout has a pretty sweet action for a speed safe and also packs a punch of utility for how light it is. Very thin and comfy in pocket. I have medium sized hands and they just lock into the grip and ergos of this knife. I don't use it as a "hard use" knife but as an all around EDC blade, its a full vibe and capitol W, WIN!! I have the original run that does not include a kershaw logo on the pocket clip and also has the same handle color way as the Damascus version. It also doesn't have the American flag on the handle. Vinnntagee burhh. anyways i probably will get another one... the Damascus for sure

Aaron P. on Jan 5, 2018

My wife got me this for Christmas and it’s amazing. Solid build and sturdy

One of kershaws best
Austin M. on Mar 14, 2019

I first experienced the knockout in a passaround forum, but i've bought 4 in the last 2 years. Kind of like a classic car, if I trade or sell it I always get another one. Super comfortable, light, thin, good steel, great blade shape. The OD green was a nice change, definitely appreciate the coated blade.

Knocked Out
Jeremy V. on Dec 30, 2016

As usual, Kershaw built a winner with the Knockout. Super light and slim with a huge blade hiding inside. Razor sharp and ready for anything you throw at it. If you're on the fence, go for it!

Knockout Knife
Ryan W. on Jan 7, 2018

By far one of the best EDCs I own. You get great bang for you buck on this. American made, great deep carry clip, great slicing ability. The speedsafe is also great on this knife. Centering is perfect. The steel will take a wicked edge, I just wish Kershaw would upgrade this to CPM 154 like its other offerings. Don't hesitate to pull the trigger should you need a good knife.

Fantastic knife for EDC
clint b. on Oct 22, 2017

Love this knife. Great action and ergonomics with good fit and finish. I highly recommend this for your knife collection.

One of the best
Brian B. on Aug 20, 2016

The Knockout is the 6th USA made Kershaw that I've purchased. I've only had it a few days but it may end up being my favorite. The most surprising thing about this knife is how light it is. You won't notice it being in your pocket. Zero blade wiggle in either direction and of course the speedsafe opening and Sandvik steel that Kershaw is known for

My favorite EDC
William A. on Feb 26, 2019

The fist thing I'd like to address is the finish on this knife. The OD Green color is far better in person than in pictures, it's very deep and in certain lights it almost has a metallic sheen to it; it's stunningly beautiful. The large drop point blade is massive from the spine to the tip and it really looks beefy. It's obviously far more substantial than my RJ Tactical 3.0, but it's not overly cumbersome in the pocket. And the best part of all is the opening. It delivers hearty chunk every time you flick it open. It holds great in the hand and out doors I can even hear it echo when I open it. It's simply a work of art.

I’ve bought 3
Daniel T. on Mar 16, 2019

Lost one, gave one to my best friend, and still had to buy a third. Something about the way it fits in my hand even though it is so thin is incredible. Add a wonderful blade-to-handle ratio and a deep carry clip and this 3.25” knife disappears in the pocket. I currently have 9 Kershaw/ZT’s (all USA made) and I feel as if this is the sweet spot in their lineup. Also 14c28n takes a phenomenal edge, underrated in my opinion.

Great knife
Chad R. on Jan 9, 2018

I love this knife! Super thin allows me to carry a bigger blade without all the bulk. Deep carry pocket clip and an awesome edge. Its a must have.

Hard to beat...
Doug V. on Jun 12, 2018

Love the black/green combo, 3 way clip option and it’s MUSA! For its length it carries small, I prefer left hand, tip up (since my phone is usually clipped into my right pocket). The only thing about it it doesn’t make sense to me are the thumb studs, I never use them over the flipper. .

Love it!
Richard B. on Jan 22, 2019

My Knockout came razor sharp right out of the box. I use it every day at work for opening boxes, plastic blister packaging ect. It seems to hold an edge just fine, but will dull with repeated use like anything else. Touching up the edge is easy with a leather strop and some fine diamond paste I found on Amazon. The key is to not let the edge get so bad that it needs grinding, but if it does, then it’s not so hard to sharpen. The knockout is tight and put together well for it’s price point. I own knives with fancy steel blades. Microtec, Protech, Piranha, ZT, and several Upper end Kershaw Knives, but vacillate between the knockout and bare knuckle for EDC. I love the American flag on it as well. It fills me with pride as a veteran to own something made in America.

My car knife
PETER B. on Aug 12, 2020

I probably use this knife more than any in my collection of mostly Spydercos, ZTs, Esees, and Bark Rivers, but it’s fun to use, wicked sharp, and lightweight.

Beginner edc supreme
Carl R. on Jan 5, 2018

Big enough for tougher taskes, affordable, and thin so it carries well. Pick one up for sure.

Awesome knife
Christopher G. on Aug 27, 2018

came hair popping sharp. nice thin design. added it to my knife rotation. just wish it was a better steel.

My new favorite EDC (over my Griptillian... XD)
Sam V. on Nov 8, 2016

This knife is a superb quality knife from a company not necessarily known for higher quality knives. Start off with the steel and edge, both are amazing quality. The Sandvik steel will hold the razor factory edge for a good long while, and is supposed to be very corrosion resistant, and easy to resharpen. Blade shape has a great cutting edge profile, perfect for EDC. Flipper is great, as well as Speedsafe assist, the blade deploys flawlessly. Once broken in, it feels like butter, and the centering has also held very true to the center. Another great factor is the classic deep carry clip. The loop-over sits the knife very deep, is easily concealable, and has great retention. Only mark off on this amazing EDC blade would be the black finish. I think it is a sort of powder coat, and it does show fingerprints and high use areas in different lighting.

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