Best SIG MPX Handguards of 2022 – Complete Review

| Last Updated: December 27, 2021

Are you looking for the best Sig MPX handguards? If so, then you won’t have any trouble finding one here.

A handguard will always come in handy for so many reasons. Once you install one of these bad boys, you’ll be able to utilize it for better comfort and safety. 

To help you find the best MPX handguard, we present to you our list of the best options currently available on the market. Before we get to our reviews, we’ll talk about how handguards work and how you can choose one for your own use.

Comparison of the Best SIG MPX Handguards

  • Best overall Sig MPX Handguard
  • Made from high-quality aluminum
  • Available in different lengths
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  • Runner-up for best Sig MPX handguard
  • Designed from quality carbon fiber
  • Built for short barrels
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  • Best carbon fiber handguard
  • Made for longer barreled MPX rifles
  • Drop-in design
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How Does a Handguard Work?

The purpose of the handguard is to prevent your hands from touching the barrel after your firearm has discharged enough rounds that the barrel is extremely hot. If you touch the barrel by accident can cause severe burns. These handguards will allow for quicker heat dissipation and protect you from injury. 

When Would I Use a Handguard?

It’s not often that people also ask when a handguard can be used. But it’s important to know a few of the instances of when it’s necessary. It’s important to keep a handguard installed at all times since it provides you with a couple of hidden benefits in the process. Here are some times when a handguard comes in handy:

During Long Shooting Sessions

You can spend hours at the range depending on how many rounds you have. If you have extra bullets and targets, that can make for a long (but fun-filled day) at the range or any place where you target shoot. Over the course of an extended session, your barrel will get extremely hot. Overheating due to lengthy use can harm the overall performance of your MPX, but a handguard that vents heat away from the barrel will help mitigate that risk.

When You Want to Customize Your MPX

Most handguards will allow you the option to customize your MPX to your advantage because they come with a Picatinny or Weaver rail that will allow you to install additional accessories. There may be some other handguards that have M-Lok slots for the purpose of customization. Either way, you have plenty of customization options at your disposal once you install a handguard of your own. 

What to Look For When Buying a Sig MPX Handguard

There are a few things that you need to look for while searching for the perfect Sig MPX handguard. It’s important to know what makes one stand out among the rest of the pack so the decision is not as difficult when having to choose between one or the other. Here are a few things that might be worth looking at:


The price tag just might be the first thing you look at, assuming you are on a budget. The price might fall within your budget range or it may not, but the important thing is to invest in the best quality and performance that you are able to afford. You really don’t want to go for a handguard that is terrible in quality (given its chief intention of protecting your barrel and your hands). 

Drop-in Installation

A handguard that is simple to install will always be a plus for most users. That way, you don’t have to rely on complex installation or a gunsmith that will install it for you and charge a ridiculous amount of money. Be sure to find a handguard that is considered a “drop-in” design if you are interested in a handguard that is easy to install. 

Customization Options

If you are looking to customize your MPX to your advantage, it’s important that you find one that will have a rail system like Picatinny or Weaver to ensure you can fit additional accessories. Also, you can consider the idea of looking for M-Lok slots on your ideal handguard so you can be able to add on more accessories as you see fit. 

Heat Dissipation

It might be wise to find a handguard that will allow for quick heat dissipation after you have fired off many rounds with your MPX. The quicker the heat can lift off of your barrel, the better the chance that the integrity of your barrel will be preserved and it won’t sustain any lasting damage from staying hot for so long. Some handguards may cause heat to dissipate quicker than others, but it can get the job done no matter how long it takes. 

Review of the Best Sig MPX Handguards

We’ll now take a look at the best Sig MPX handguards on the market. It’s important that you carefully consider all of the options available so you are able to decide which one will work out best for you in the long run. Let’s begin by taking a look at the “best overall” MPX handguard:

Best Overall:
Midwest Industries, Inc. SIG Sauer MPX Handguard


  • Easy to install
  • Super durable in quality
  • Different lengths available
  • Allows for excellent heat dissipation
  • Compatible for most M-Lok accessories


  • None

What Recent Buyers Report

Most new users were looking for a handguard that not only allowed for superior protection of their barrel but also the ability to give them customization options. They were really satisfied with this one from Midwest Industries due to its ability to dissipate heat quickly while protecting your hands from accidentally touching the barrel itself. One user said that he was able to put this to good use and was able to do some customizing in the process.

Why it Stands Out to Us

Available in different lengths, this handguard can accommodate any MPX barrel that you install on your rifle. Before you grab one of these, be sure to measure your barrel so you know which one is the best fit for you. This handguard is really durable thanks to the high-quality aluminum construction and the anodized coating that goes along with it. This means it won’t scratch, dent, or weaken after episodes of abuse and overheating.

Who Will Use This Most

This will be great for any users who intend to make the most out of their MPX short-barreled rifle. This means you will put it to good use to ensure that it’s more accurate, able to preserve the barrel’s quality, and able to give you all the customization options that you need. You will certainly transform your MPX into a beast that will be a head-turner at the range.

Bottom Line

The Midwest Industries SIG Sauer MPX Handguard has stood out as the best overall option and for a few good reasons. For one, it’s got superior durability and ease of customization. All you have to do is take a few minutes to tack on this bad boy and you’ll be ready to take your MPX shooting to the next level. If you want to customize it with the right kind of accessories, knock yourself out. You have plenty of M-Lok slots to work with.

Lancer Handguard SIG MPX 4.5" M-Lok


  • Super durable quality
  • Takes minutes to install
  • Easy customization options
  • Aesthetic design looks tactical
  • Heat-resistant build keeps your barrel guard cool


  • None

What Recent Buyers Report 

New users were MPX owners that have shorter barrels equipped (either factory defaults or upgrades). They said that the carbon fiber construction was lightweight but super strong in the process. Not only that, they said that customization was a cinch since it was able to work really well with plenty of M-Lok accessories. One user said that he was able to apply a flashlight onto one of the sights so he can navigate through dark corners in tactical situations.

Why it Stands Out to Us

Carbon fiber is considered to be one of the best materials that you can find in a handguard. Yes, it’s durable and it is proven to be heat resistant. So if you are in it for the long haul, chances are you will be able to put this bad boy to good use for a long day at the range. If you are in a tactical application as a member of law enforcement or the military, this handguard will give you plenty of customization opportunities to make sure that you can enhance your MPX the way you see fit.

Who Will Use This Most

This will come quite in handy for civilians who use an MPX for either target shooting or competitions. Alternatively, there is a version of an MPX that is only used by law enforcement and military personnel. Regardless, this handguard is still compatible with either model. If you want it for excellent protection for your barrel and the ability to customize it to your liking, this is the handguard you may want to consider.

Bottom Line

The Lancer Handguard Sig MPX 4.5” M-Lok could certainly give you a leg up as far as how well your MPX will perform overall. You will certainly need to put it to good use if you want quicker heat dissipation and easy customization. The carbon fiber construction is one of the biggest factors as to why it will stand out as one of the best for most users.

Best Carbon Fiber Handguard:
Lancer Handguard SIG MPX 10"


  • Very fast installation
  • Extremely lightweight
  • High-quality construction
  • Resists heat and quickly dissipates it
  • Excellent fit; no additional fitting required


  • None

What Recent Buyers Report

According to most users, they said that the construction of this handguard was tough as nails and very lightweight to boot. This fits well on many of the MPX rifles that had longer barrels. One user said that this handguard did a better job of covering the barrel itself compared to a previous handguard that he tried out. He said the coverage was much better and didn’t leave any spots exposed.

Why it Stands Out to Us

If you are looking for a handguard that will be the longer carbon fiber version of our “runner-up” choice, you’ve found it here. Yes, it’s got carbon fiber as the material of choice. That’s a good sign if you want something that is both light and really durable. It’s proven to resist absorbing heat and allow quick dissipation. This will be a godsend for you and your barrel if you want a handguard that will really get your MPX to stand out.

Who Will Use This Most

If you own a long barrel MPX, then there’s a good chance that this handguard will be long enough to give it plenty of coverage. That way, you won’t risk touching the barrel by accident. You’d be surprised how little this handguard weighs too!

Bottom Line

The Lancer Handguard Sig MPX 10” is certainly one of your best options if you want plenty of coverage for your barrel. Sure, anything shorter in length might not be good enough. But rest assured, it will give you the best possible protection for your barrel and your hands. Plus, it’s lightweight enough to shave a few ounces off your MPX build.

Benefits of Investing in a Quality Handguard

If you are on the fence about investing in a quality handguard, it’s important to know some of the benefits that come with using one. This should give you a least a bit of a push to help you invest in the handguard that will be right for you. Here are some benefits you might get to enjoy:

Better Barrel Protection

Yes, we’ve talked about protection for your barrel in terms of heat. But it can also protect it in other regards. We’re talking about bad weather conditions and debris. Your barrel is important and you want to ensure you can make cleaning it a whole lot easier. Besides, the better condition it is in, the more reliable it stays.

Numerous Customization Opportunities

If you are looking to add on accessories for your MPX, then you may want to consider adding on a handguard so you can use the rail or M-Lok slots to your advantage. There are plenty of accessories that will be compatible with your handguard, but it is important to choose wisely since there are some of them that might not be able to fit perfectly. 


If you are looking for a Sig MPX handguard, one of these may just be the right one for you. You’ll definitely come away impressed with the overall quality and performance of any handguard on this list. By the time you install it on your MPX barrel, you’ll be dying to try it out at the range to see how much it has changed performance-wise. 

Josh Lewis the managing editor at Gun Mann and when he isn't writing about guns he is more than likely tinkering with them. He also enjoys hunting, fishing and spending time outdoors. As a lifelong gun owner he knows his stuff!

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