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Smith & Wesson SWMP4L-BRK M&P Large Linerlock A/O, Grey

4.6 4.6 out of 5 stars 1,492 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Smith & Wesson
Model Name SWMP4L-BRK
Special Feature Stainless Steel
Age Range (Description) Adult
Handle Material Aluminum
Color Black
Blade Material Stainless Steel
Style Plain Edge
Product Care Instructions Hand Wash Only
Blade Shape Clip Point

About this item

  • DIMENSIONS: 8.6 inch (21.8 cm) overall length with a blade length of 3.6 inches (9.1 cm) and a weight of 7.6 ounces
  • DURABLE: Blade is made of reliable 4034 Black Oxide High Carbon Stainless Steel with a black aluminum handle with rubber inlay
  • DEPENDABLE: Quick and easy access with the convenient pocket clip, flipper/finger actuator and M.A.G.I.C. assisted opening making it ideal for everyday carry
  • SECURE: Have confidence that the blade will not slip with the security of the liner lock and safety lock
  • BE PREPARED: Knife features an ambidextrous thumb plate
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Top Brand: Smith & Wesson

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From the manufacturer

Smith & Wesson SWMP4L


Smith & Wesson and M&P knives encompass the same quality and prestige as Smith & Wesson firearms. Whether you need a solid lockback design, special purpose tactical folder, concealable fixed blade, self-defense tool or a multi-tool, we have the product for you. Our knives and tools are loaded with features like assisted opening, thumb knobs, safety locks, full tang designs and ergonomic grips. Made of top quality materials these knives are designed for rugged use and will perform year after year.

Smith & Wesson SWMP4L

Smith and Wesson focuses on creating knives that are ready for all situations. Whether you are a knife collector, survivalist or a first responder, you can trust that your S&W knife will be the tool you can rely on in any situation.

  • M.A.G.I.C. assisted opening
  • 4034 Black Oxide Stainless Steel
  • Aluminum handle with rubber inlay
  • Pocket clip for easy carry

Smith & Wesson SWMP4L Highlighted Features

M.A.G.I.C. assisted opening blade

Ambidextrous thumb plate

Safety lock

Glass break

Product Description

Product Description

Smith and Wesson focuses on creating knives that are ready for all situations. Whether you are a knife collector, survivalist or a first responder, you can trust that your S&W knife will be the tool you can rely on in any situation.

From the Manufacturer

The Magic Assisted Opening System helps fold open the blade single handedly.

Product information

Technical Details

Additional Information

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Smith & Wesson SWMP4L-BRK M&P Large Linerlock A/O, Grey

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,492 global ratings

Customers say

Customers like the quality, sharpness and value of the knife. They mention that it's a great knife, with a rugged construction and a sharp blade that's easy to sharpen using a stone. They are also satisfied with performance, and size. That said, opinions are mixed on portability, ease of opening and closing, and safety.

AI-generated from the text of customer reviews

425 customers mention368 positive57 negative

Customers like the quality of the knife. They say it has a great construction, and the blade is sharp right out of the box. Customers also say that the tip point is perfect and strong enough for piercing. They mention that the knife is sturdy, and has reliable opening assist.

"...This knife came out of the box razor sharp! The assisted opening mechanism is very well made and opens extremely smooth...." Read more

"...The option safety switch is a great choice and the tough assisted open blade will hopefully help deter children from opening the knife." Read more

"...Awesome knife! I've bought other knives to use for camping such as a survival knife with a saw back for cutting fire wood but this is my main carry...." Read more

"...The other nice thing about the safety lock is that you can lock it in the open position to avoid the blade collapsing onto your fingers should the..." Read more

173 customers mention151 positive22 negative

Customers are happy with the sharpness of the knife. They say it's razor sharp right out of the box, and that it'll be easier to sharpen using a stone. They also mention that it cuts tubing and pretty much everything else well.

"...This knife came out of the box razor sharp! The assisted opening mechanism is very well made and opens extremely smooth...." Read more

"...The blade was razor sharp when I got it and stayed that way...." Read more

"...Upon arrival the blade is RAZOR sharp. Not polished edge sharp, but pretty dang close...." Read more

"...Blade is sharp and straight. However, the one button/lever release to disengage the blade was an absolute disappointment...." Read more

76 customers mention68 positive8 negative

Customers like the value of the knife. For example, they say it's a good buy for the price, has a hefty feel, and is one of the best blades for the cash. That said, some complain that the paint finish wears off fairly easily.

"...It's also cheaper than the Kershaw one...." Read more

"...I'm no bladesmith, but I'm impressed with the quality for the price point...." Read more

"...So, overall, it's a nice but cheaper knife...." Read more

"...We shall see how this process goes. For such a decently priced and sturdy knife, I expected much more out of it." Read more

73 customers mention56 positive17 negative

Customers like the performance of the knife. They say it works well, the rocker on top works well but still takes some effort to open, and it gets the job done. They also say the switch is very good and it never malfunctioned on them. The blade delivery system works excellent, and the liner lock works just as it should. Overall, most find it to be a very veritable tool.

"...This Smith and Wesson knife is phenomenal in terms of functionality, reliability and design...." Read more

"...The rocker on top works very well but still takes some effort to open...." Read more

"...cutting through cardboard, zipties, fabric, the like, it seems to work well and hold up well enough...." Read more

"...I say loved, cause I accidentally dropped it and now the mechanism doesn't work. I can't get the knife to open anymore...." Read more

47 customers mention34 positive13 negative

Customers like the size of the knife. They mention that it's the perfect size, fits nicely in the hand, and has a glass breaker on it. Some say that the handle is bigger for good grip. Overall, most are satisfied with the fit and finish of the product.

"...The overall fit and finish are good but there is a spot where the edge needs to be touched up near the point, otherwise razor sharp...." Read more

"...The grip is nice and fits well in your hand and because of the above average weight and thick design of the knife handle you're able to apply..." Read more

"...The handle is naturally longer to accommodate the blade. The handle is also rather wide, but comfortable for a person with long fingers...." Read more

"...Nice and sharp from the manufacturer, fits nicely in my hand, has an easy opening system.I gave it a 4 out of 5 because of the little issues...." Read more

135 customers mention66 positive69 negative

Customers are mixed about the portability of the knife. Some mention that it boasts a nice weight, feels solid, and is slim for everyday carry. However, others say that it has some weight and size to it so they could never see trying to walk with it.

"...But once again to emphasize it, this is a large knife that takes up quite a bit of space in a person's pocket...." Read more

"...It boasted a nice weight as well.It came in today. I do enjoy the extra weight of the knife which makes it comfortable...." Read more

"...It does have some weight to it, so be prepared for that, but I don't find it to be bad - I wear 5.11 Taclite Pro pants and carry it in the magazine..." Read more

"...the package the first thing I noticed about this knife is the weight and appearance. It has a great rugged and balance feel...." Read more

112 customers mention70 positive42 negative

Customers are mixed about the ease of opening and closing the knife. Some mention that it has a quick 2 way assisted opening, while others say that it takes considerable effort to open.

"...The assisted opening mechanism is very well made and opens extremely smooth...." Read more

"...It takes considerable effort to open by flicking the blade itself. The rocker on top works very well but still takes some effort to open...." Read more

"...The assisted opening works quick and smooth. If you engage the safety with it open, you need to disengage it to close it...." Read more

"...I was surprise how well the blade opens instantly when you pull the protruding tab toward you...." Read more

51 customers mention34 positive17 negative

Customers are mixed about the safety of the knife. Some mention that it has a nice safety feature and spring assist which can be either thumb or, the safety switch is very good, and it gives the carrier a sense of security. However, others say that it looks and feels good, but the safety is horrible and sometimes is hard to engage.

"...The option safety switch is a great choice and the tough assisted open blade will hopefully help deter children from opening the knife." Read more

"...on the left side of the knife so if you're left handed the safety can be a bit cumbersome...." Read more

"...The safety switch is a nice feature because my old knives would sometimes open in my pocket and give me horrifying surprises...." Read more

"...The knife has a pistol-like safety, complete with red dot, for those that like a little extra security...." Read more

Legal to carry? Flipper is not really a flipper
3 Stars
Legal to carry? Flipper is not really a flipper
1) It's very heavy. At 204 grams, it's close to half a pound. 2) I can't open it with the thumb stud, which is actually a square of hard plastic screwed to a flat edge of the blade. When I tried, I ended up pushing the blade sideways instead of up and open. 3) The so-called flipper is not attached to the blade. It seems to be more of a lever that, when pressed, pushes the knife open. I'd worry about carrying this knife in case the "flipper" is considered a button, possibly making this knife more of a switchblade. 4) The safety switch slid down while I was using the knife (I didn't realize it) and I couldn't close the knife, took a moment to figure it out, thought it was broken. 5) The blade is very sharp out of the box, and overall it seems sturdy.I won't be returning it, but I don't think I can take it outside my home. And it's so heavy, I wouldn't want to carry it anyway.
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Top reviews from the United States

Kevin Johnson
5.0 out of 5 stars It would be very difficult to find a better knife at this price point!
Reviewed in the United States on September 30, 2018
Verified Purchase
I purchased this knife for work/everyday carry after my previous everyday carry knife was stolen. I use my knives very often at work and for general use on a daily basis so they tend to get beat up so I didn't want to spend a lot on a knife that may not survive for any long period of time. I paid around $30, give or take a few dollars for this knife and wasn't expecting it to be the best knife I had ever owned or anything. When I received the knife and first opened it i was pleasantly surprised at how well it was constructed and felt in my hand. I've heard people say that certain knives come right out of the box razor sharp but I've seen very few live up to that. This knife came out of the box razor sharp! The assisted opening mechanism is very well made and opens extremely smooth. It takes a good bit of pressure to open but with the size and sharpness of the blade that's s good thing in my opinion. It's been a few weeks since I've had it and have been using it a lot everyday. It's taken some abuse and still looks and performs great! The blade has held it's edge remarkably well. It still seems just as sharp as when it was brand new. I am extremely happy that I purchased it and if/when the time comes to buy a new knife, i will definitely be looking at Smith and Wesson M&P knives for a replacement
One person found this helpful
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Corbin Brown
5.0 out of 5 stars Great EDC knife!
Reviewed in the United States on December 31, 2023
Verified Purchase
If you’re someone who carries a knife everyday, this is a must have. This Smith and Wesson knife is phenomenal in terms of functionality, reliability and design. The option safety switch is a great choice and the tough assisted open blade will hopefully help deter children from opening the knife.
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Bert
5.0 out of 5 stars Best knife I've ever owned!
Reviewed in the United States on July 31, 2016
Verified Purchase
I bought one of these approximately 4 years ago and would feel naked if I didn't have it on me, I carried absolutely all of the time, it was extremely reliable and handy. I recently lost it, probably because I left it lay somewhere at work and someone snatched it up, so I just bought a replacement. The blade was razor sharp when I got it and stayed that way. I never sharpened it, not even once, and it still zipped through paper flawlessly even after being extremely rough with it opening cans, I used it to open a locked door once (my keys were on the other side) by placing the blade in the latch and giving it a front kick. It's super strong, the weight of it is very well balanced and has a great feel to it. Awesome knife! I've bought other knives to use for camping such as a survival knife with a saw back for cutting fire wood but this is my main carry. The pocket clip screws came loose and fell out after 2+ years of heavy use. I expected the clip to break or fall off a lot sooner than it did. And it could have been put back on if I looked for and got the right screws but I didn't bother. Definitely recommended for both knife enthusiasts and collectors to any person that is looking for a great, long lasting knife.
11 people found this helpful
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Anon
4.0 out of 5 stars Built like a rock
Reviewed in the United States on August 9, 2011
Verified Purchase
I've owned and have been carrying this knife for a few weeks and overall it is very sturdy to say the least. Previous spring assisted knives I've carried do not share this same trait and often fall apart after a year or so. This one feels much different and I don't believe it will break down on me any time soon; though that has yet to be proven. Compared to the crappy 440 stainless steel knives I've been using the quality of the higher grade of steel and seems to hold an edge pretty well. I took it to a friend of mine who works at a tactical shop and he called it over-engineered. The safety switch is a nice feature because my old knives would sometimes open in my pocket and give me horrifying surprises. The other nice thing about the safety lock is that you can lock it in the open position to avoid the blade collapsing onto your fingers should the liner lock fail (which has happened to me with my crappy knives). Overall I kind of like it.

Now for the odd quirks.
Though it is a spring assisted knife of sorts, it is rather stiff for a spring assist. It takes considerable effort to open by flicking the blade itself. The rocker on top works very well but still takes some effort to open. When it does open it often rocks my entire forearm (although I am a rather slender person).

The picture can be misleading. Take note people that this is a rather large knife. The blade is about three and a quarter inches long. The handle is naturally longer to accommodate the blade. The handle is also rather wide, but comfortable for a person with long fingers. The rubberized grip on the handle is quite nice and makes gripping it easy whichever way you hold it. But once again to emphasize it, this is a large knife that takes up quite a bit of space in a person's pocket.

Overall a 4 out of 5 stars because I do like it, but I don't love it.
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hilde
5.0 out of 5 stars Highly recommend this knife
Reviewed in the United States on October 22, 2019
Verified Purchase
Love this knife, it's my EDC (when not at work - we have a blade length restriction). This feels solid and sturdy in my hand, the safety is solid and I don't see how that could accidentally be disengaged. The assisted opening works quick and smooth. If you engage the safety with it open, you need to disengage it to close it. Found out my dad has had this same knife for years - the clip is getting loose, but still functioning.

It does have some weight to it, so be prepared for that, but I don't find it to be bad - I wear 5.11 Taclite Pro pants and carry it in the magazine pocket.

Edit: one "complaint" I might have about this knife is the safety is only on the left side of the knife so if you're left handed the safety can be a bit cumbersome. You can access it by using your finger, so I'm not going to knock a star off, but from the right hand it's much more comfortable to flip the safety off with your thumb and use your finger to activate the assisted opening.
3 people found this helpful
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