Top 8 SIG M400 Tread Problems: Solve Them Now!

In the realm of firearms, the SIG M400 Tread symbolizes precision and reliability. Yet, SIG M400 tread problems always occur.

In a letdown, users may encounter challenges that test the limits of their equipment.

However, within these real-time trials lie opportunities for growth and improvement.

Fear not; I’ve uncovered solutions to these pesky issues. You will find peace after exploring it.

Let’s dive in!

Issues and Fixes at a Glance

8 ProblemsWith Their Quick Solutions
Jamming IssuesCleaning and maintenance.
Misfire ProblemsProperly clean the chamber and gas system, inspect ammo.
Charging Handle IssueMortaring the rifle to dislodge the obstruction.
Failure To ExtractA thorough clean-up of the internals.
Problems With The DesignThink about a transformation.
Accuracy ProblemsProperly align, Remove unnecessary attachments.
Recoil IssueEnsure balance, switch to a lower-powered ammo.
Loose StockTightening screws, inspection.
SIG M400 Tread Problems

SIG M400 Tread Problems with Their Practical Solutions

1. Jamming Issues:

First frustration? It is a jamming issue.

The rounds get stuck. The bolt refuses to budge, and the frustrating ordeal of trying to figure out why it’s happening can leave anyone scratching their heads.

One particular problem is the tendency for Gen 2 Pmags to exacerbate the problem.

The mag well seems to be a culprit, with its tendency for awkward insertion and release.

It’s a real drama when you’re in the heat of the moment and your rifle decides to throw a temper.

But it’s not just about the hardware; sometimes, it’s about how you grip the rifle. Those grip “nubs” might seem insignificant, but they can make all the difference in preventing jamming.

Read More: Sig Sauer Romeo 1 Problems with Effective Solutions


Fear not; there’s a straightforward approach to tackling them.

  • I’ve learned that cleanliness and maintenance are the keys to smooth operation.
  • The basics matter, so always begin by ensuring your rifle is properly cleaned and lubricated.
  • Rinse the magazine and inspect your ammo for any defects.
  • Next, focus on the bolt carrier group (BCG) and the charging handle.
  • A wonky gas system or spring might be the culprit behind your bolt cycling problem, so a thorough inspection is necessary.
  • Check the feed ramp and headspace to ensure everything is in order.
  • Don’t hesitate to replace low-quality rounds with reliable ones.

Remember, problem-solving requires patience and methodical tricks rather than wild guesses.

Trust me, you’ll be back to enjoying the thrill of shooting.

2. Misfire Problems:

Next, misfires can be a dreaded issue. I have observed several factors contributing to misfires.

  1. One surprise culprit is the firing pin. Especially when worn or damaged, it can lead to inconsistent performance.
  2. Also, using subpar ammo exacerbates the problem.
  3. Another factor is the gas setting. If they’re incorrect, misfires become more common.
  4. Dirty chambers are also a common cause of misfires.

However, a solution is necessary. Right?


First things first, it’s essential to properly clean the chamber and gas system to ensure that residue buildup isn’t hindering performance.

Don’t hesitate to inspect the ammo either; sometimes, little things like improper loading can make a big difference.

If you’ve discovered that the firing pin is indeed the problem, don’t worry; replacing it is a relatively simple task.

Adjusting the firing pin to ensure it strikes with the right force can seriously pay off in preventing future misfires.

Trust me, investing time in these maintenance steps will make a world of difference.

3. Charging Handle Issue:

Listen! Remember the excitement of acquiring a new rifle? Well, that enthusiasm can quickly dissipate if you encounter jamming due to a faulty charging handle.

This problem isn’t just an annoyance; it can be a real obstacle to smooth operation.

The cycling mechanism should be as easy as threading a needle. But, alas, it can feel more like trying to navigate a storm.

The extracting process becomes a task, and getting through a magazine can become a pain in the neck.

You believe you’ve got a quality rifle, but when it starts to behave like a lemon, doubts start to drag in.

Don’t worry, we are going to talk about a fix.


Here, I’ve found a reliable method to resolve them.

The key lies in manual cycling. This is particularly true when dealing with NATO rounds or reloaded ammo.

Upon noticing any smudges or black muck in the primer area, it’s an indicative sign of potential problems.

Check for any necks or bullets stuck in the chamber.

If you find any, the solution often involves a simple trick: mortaring the rifle to dislodge the obstruction.

This method has proven effective in freeing up the charging handle, especially if you’ve been ignoring minor issues.

Additionally, take note of how the rifle handles during manual cycling.

If it feels off or misses, further investigation may be necessary.

Oh, one more thing to mention, always ensure you’re using quality ammunition to minimize the risk of malfunctions.

4. Failure to Extract:

When it comes to FTE, it’s more than just a failure. It can be a real headache for shooters.

Trouble often arises due to various reasons, ranging from cleaning and maintenance neglect to issues with the firearm itself.

The bolt carrier group may be the culprit in many malfunctions. It leads to frustrating accidents on the range.

Dealing with a stubborn SIG M400 Tread experiencing a total pop-up can be a challenge, especially if the root cause isn’t immediately apparent.

Improper lubrication or an over-lubricated firearm can make it irritable and prone to no-go situations.

Ignoring these signs could lead to more serious problems down the line.


For a solution, a thorough clean-up of the internals revealed friction as the culprit.

I explored the world of lubricants, seeking the perfect solution to ease extraction and enhance the performance of vital parts like the bolt carrier group (BCG).

I discovered that comprehensive maintenance was key.

If you’re still experiencing issues, don’t fret; there may just be a trick or two left.

Remember, time spent on good maintenance pays off on better days at the range.

5. Problems with the Design:

At first, everything felt smooth. But it wasn’t long before issues cropped up. Especially with the tiny bolt catcher and the extended left-handed mag release.

At first, they thought it was just a couple of minor hiccups to tackle. But as time went on, avoiding these quirks became a bit of a routine.

So, yeah, there’s a bit of a design issue there.


The solution demands innovation. Instead of a mere fix, let’s think of it as a transformation.

Retrofitting the design, not just of the sling attachment but of the entire mechanism. This opens new possibilities.

It’s not just about addressing the mag release issue; it’s about reimagining the firearms experience.

6. Accuracy Problems:

Now, before you get disappointed and think this is a downer, let me share my research.

When the owners first took it out of the range, they were surprised by how solid it felt.

However, when they tried to see our targets, it was a bit of a ghost.

The sighting issues were a damper on an otherwise great day.

They tried and tried to hit our targets, but it seemed like they disappeared into thin air.

It wasn’t until they put it to the test in the field that we realized what was going on.

The team was determined to range it in.

And boy, after some adjustments, it was ready.

But let me tell you, it was no easy task. It took some solid effort to get it sighted in just right.


As a problem solver, step one revolves around ensuring these are properly aligned.

Tweaking becomes important here; it’s about getting the optics kitted out just right.

Past errors often revolved around not properly zeroing the sights. The process demands patience.

Sighting in with Hornady 55gr can be a great option after.

Now, onto the next thing: the rail.

Removing unnecessary attachments is crucial.

I’ve found that keeping it simple is key to accuracy.

7. Recoil Issue:

Next, here is the recoil issue. It felt like a mini-earthquake with every pull of the trigger.

It makes each shooting experience less comfortable than usual.

The shake-up was something I’d never felt before.

Oops, it seemed I had underestimated the recoil of this rifle. Forget showing off; I was just trying to keep my aim steady!

Despite the recoil, I couldn’t deny the precision of the Sig M400 tread.

Each shot hit its mark with more force than expected. However, the jolt it gave me was something I had to manage with each shot.

Nonetheless, I gained more experience handling the recoil and maintaining my aim.


So, what to do for a solution? It is crucial to ensure a balanced and righteous stance while holding the firearm correctly.

Additionally, decide to switch to a lower-powered ammo and opt for a lighter muzzle brake to help reduce recoil force.

Taking a closer look at the buffer system, minimize backward force. It further enhances control.

This holistic approach not only addresses recoil concerns but also enhances the overall shooting experience.

8. Loose Stock:

Last but not least, one issue that can throw off your shooting experience is a loose stock.

Picture this: You’re at the range on a sunny afternoon. You line up at your target, ready to aim.

But as you raise your rifle, there’s an odd sensation, an unsettling feeling.

Upon inspection, you realize the stock is twitching. This makes it difficult to maintain steady control and achieve precise goals.

It’s alarming and shakes your confidence.


I’ve found that a comprehensive fix involves a step-by-step process.

  • Firstly, ensure all screws and pins are tightened securely.
  • Secondly, thoroughly examine the buffer tube to confirm it’s properly attached.
  • Next, inspect the buffer spring; if it is worn out, promptly replace it with a new one.

This action will significantly enhance the firmness and security of the stock. It provides a more stable shooting experience.

My Final Conclusion:

So, let’s cover up. In my research with the SIG M400 Tread, I’ve encountered some challenging moments. The rollercoaster ride of addressing jamming issues and charging handle snags initially left me puzzled.

However, through extensive field testing and smart troubleshooting, many of these issues were overcome with elbow grease and care.

One design aspect that continually cropped up was the recoil surprise. It was initially puzzling but became more manageable with time.

The elusive nature of some problems, like the loose stock, required a strategic approach to resolve.

Despite the challenges, the SIG M400 Tread has proven to be a reliable companion.

My Friends Feedback:

My friend’s brand new Sig M400 Enhanced has been nothing but trouble at the range.

Despite cleaning and lubing it thoroughly, the darn thing keeps malfunctioning.

The chamber gets all gummed up, causing feeding issues and the bolt to jam.

Trying different types of ammo didn’t help either.

It’s frustrating because the rifle has some cool features like the ambidextrous mag release and safety lever.

But the constant problems are just too much.

My friend even tried upgrading some parts to fix the over-gassing and slop, but no luck.

It’s a shame because the Sig M400 Tread is supposed to be reliable.

For now, he’s sticking with his Ruger MPR 18″ until Sig figures out how to make their rifles work properly.

Common Questions Asked About SIG M400 Tread:

What material is in the barrel of the SIG M400 tread?

The M400 TREAD is chambered in 5.56 NATO. It has a 16-inch stainless steel barrel. This enhances durability and corrosion resistance. Additionally, it improves accuracy.

What is the most accurate SIG Sauer?

The original P210 was highly accurate. The modern P210A has enhanced ergonomics. It features a stainless steel slide. The slide has a durable coating. This ensures corrosion resistance.

How much does a Sig M400 tread coil weigh?

Weight, including magazine, is 7 lbs.

What is the difference between the M4 and the M400?

The M400 features a two-piece counter-rotating center brush. It also has a larger motor that operates gears on both sides. In comparison, the M4 only sends power to one side. Both are excellent options, with minimal noticeable differences.

How much is the SIGM400?

Its price is $879.99.

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