Kershaw Launch 4 CA Legal Automatic Knife Blue (1.9" Black) 7500BLUBLK


  • CA-legal single-edged dagger blade made from black-finished CPM 154.
  • Bullseye firing button and automatic action.
  • Blue anodized aluminum handle.
  • Tip-up pocket clip.


The Kershaw Launch 4 knife is a California-legal automatic with a ridiculously fast action. Its symmetry in design, both handle and blade, adds distinction. Following the tradition of its predecessors, the Launch 4 has a bulls-eye pattern firing button and a tip-up carry pocket clip. This automatic knife is a pint-sized performer!

The Kershaw Launch Series high-performance, USA-made automatics that punch way above their price point! Shop the whole selection!

Item #BHQ-37820
Our Price: $104.95
Out of Stock
Try Kershaw (Auto) instead
Login to add items to your Wishlist


  • Overall Length: 5.10"
  • Blade Length: 1.90"
  • Blade Thickness: 0.12"
  • Blade Material: CPM 154
  • Blade Style: Spear Point
  • Finish: Black
  • Edge Type: Plain
  • Handle Length: 3.20"
  • Handle Thickness: 0.48"
  • Handle Material: Aluminum
  • Color: Blue
  • Weight: 1.98 oz.
  • User: Right Hand
  • Pocket Clip: Tip-Up
  • Knife Type: Automatic
  • Opener: Push Button
  • Lock Type: Button Lock
  • Brand: Kershaw
  • Model: Launch 4
  • Model Number: 7500BLUBLK
  • Country of Origin: USA
  • Best Use: Tactical
  • Product Type: Knife

Customer Reviews

Awesome Auto
Ryan L. on Jan 17, 2020

This little guy is so much better than I was expecting. The action is super quick, it kinda kicks a bit, but I love it. Once opened the lock is great, no play in the blade at all, perfectly centered.

Awesome Knife!
Jeff A. on Nov 12, 2019

This is a really excellent knife. I've been carrying it for quite a while. Apologies if this is a shameless plug, but I reviewed it on my YouTube channel a few months back. Everyone should have one!

Blue color is great
patrick g. on Sep 5, 2019

Great little package opener, and really fun to play with.

Jozef J. on Aug 26, 2019

The ol launch 4. The Cali fav. The knife itself is tiny and pretty fun to carry actually. The design is super cool looking to me. Very simple design that is an auto. This is a great second knife. Obviously not the only knife you would carry due to the limited use you could have but as a second knife for some simple tasks this thing is a blast to have. That’s why we are here right to have fun knife. The ergos on this knife are admittedly kinda crap if you were doing heavy cutting and the blade is too small for a lot of cutting but for those small simple tasks it’s a blast.

Great knife
mike f. on Aug 21, 2019

Perfect for what I wanted. Small, fast, sharp.

Perfect secondary carry!
Bryan L. on Jul 25, 2019

This is such a slick and handle little knife. Fits perfectly in the little pocket on jeans. 154 is really easy to sharpen, and holds an edge fairly well. I use this mainly for boxes, but also in any situation that i wouldn't want to abuse my more expensive knives, and it's always my secondary carry for that reason!

Kershaw Launch does not disappoint
Joseph T. on Jul 22, 2019

The quality and fierce opening action are Launch knives claim to fame. It is the fifth and smallest of the Launch knives in my collection. Keep up the good work.

Great buy
Luis G. on Feb 25, 2019

Good little knife wont disappoint. feels good in hand for its size.

First ever auto
Kevin N. on Jan 5, 2018

The Kershaw launch 4 is really snappy…it’s a awesome little auto,I bought it to see if I will like autos and it turns out I do so bought a launch 2 months later!

Size doesn't matter
Jim S. on Jun 30, 2017

Received my Launch 4 from Blade HQ and what a fun knife it is. CPM-154 steel, Blue aluminum handles. Now I can be anywhere in SoCal and pull out my auto and pop it open with out worry. Special tip-contact Kershaw and they have a deep carry clip that will fit. No-charge and mailed to my adobe. A great add to my family.

Small and mighty
Darren S. on Jun 10, 2022

The blue finish is great on this. The size is very small and the action is very snappy. With my big hands i often find my self struggling to hold on when opening. For me, its to small and fidgety for daily carry however, great for sitting on the desk for letters, packages and other mail tasks. It slips well into athletic shorts pockets and hides away very well.

Kershaw Launch 4
ira s. on Jan 31, 2020

Overall this is a useful knife. Push button/blade released is difficult to push. You have to be committed. Which might be a good thing. I doubt this knife will deploy in your pocket by accident. I have large hands so it is a strain on my hands to open. 4 stars because of price. Well made. Feels solid. Not dissatisfied at all.

My very first auto experience....
MICHAEL K. on Oct 23, 2019

So yeah, my first auto knife. Had no idea what to expect. Here's what I got: a fun little knife whose build quality and blade are at least worth what you're paying for, but I was hoping for just a little more fun factor. I'm thinking I am going to have to pay Protech money to get the smooth operation I'm looking for. Don't get me wrong, the push button isn't as gritty as one of my Boker Kalashnikov's I've acquired since getting this one, but you can definitely push the button in ways where you get a good bit of friction or even get it hung up where it was ALMOST pushed far enough but the the blade doesn't come out, and the button is flush with the scale. Don't get me wrong, I really like this knife, and wish I could do a 4.5 on it. If you get the tip of your thumb on the button and give it a serious press, the blade comes out with some authority. I really like the blade metal at this price point, and it's going to get carried several days a week at my job. Oh, I REALLY wish Kershaw would add some kind of traction on the scales, esp on the larger knives intended more for self-defense.

Almost perfect!
John S. on Sep 29, 2019

I’ve had my eye on a Launch 4 for a few months now, and finally got one from Blade HQ recently. Love it! I really like the blue scales and blacked-out blade. The action on the plunge lock was a bit stiff at first (to be expected with a new knife), but it’s settling in nicely and getting easier to fire on command with each press. Also love the way the aluminum scales feel in the hand. This thing feels almost perfectly balanced to me. It’s under 2 ounces, so it’s light, but it’s so compact that it feels like a little tank. My only real complaints are that I don’t love the spear point blade shape from a usage standpoint, though it does make it look really good. And I wish it came with a deep-carry pocket clip. But taking all things into consideration, I love this little guy. Came razor sharp out of the box and fits into the pocket watch pocket of my jeans which is nice. And I can’t rave enough about the ordering process with Blade HQ. Ordered it on a Friday afternoon, had it the following Monday. Amazing!

Good build quality for the money
Nicholas C. on Sep 6, 2019

Despite some creakiness in the button lock, this is an excellent cutter. The anodization is well done and the blade flies out. A three-finger grip is comfortable and secure. However, it really could use a deep-carry clip. The carry depth isn't as egregious an issue as it is on, say, a PM2 or a Brouwer, but such a small knife shouldn't stick out so much.

Solid buy
Tim W. on Jun 29, 2017

Have had my Launch 4 for about three weeks now and it's a great carry. It's so light and most importantly SHORT in the pocket, that you don't really notice it. I find myself carrying it about once a week in casual attire if I'm going out. Action is super fast and powerful. I can get about two to three fingers wrapped around it with my index finger on the indent of the pocket clip. The blade is small, so you won't be doing major cutting, but it's fine for a small pocket banger. And it does hold a nice edge. My chief complaint is that the pocket clip is BIG for this knife. It runs the entire length of the handle. And the butt end does stick out of the pocket pretty far. If kershaw offered a shortened, deep carry clip, this would be a five star knife that would get a lot of pocket time. Still a solid purchase. Love my kershaws

Great Knife
Jason M. on Jun 28, 2017

In love with this knife. It's very small. It's so small I use it in my change pocket on my pants. The edge out of the box is sharp, so watch out when opening and closing the unit. I love the color too. Got a blue and a black unit.

Blade HQ Copyright © 2023 Blade HQ. All rights reserved
Sale Banner
Give Feedback