I don’t know about y’all, but this feels like the summer of shotguns and ARs for Gears of Guns. Today, we’re going to be talking about the Mossberg 940 Pro Tactical SPX, why I’m having regrets about getting it, and why I’m not.
Before we get into the shotgun itself, I want to talk about shotgun suppressors and their rise in popularity over the last few years. Many of you know that we have a few shotgun suppressors headed our way, which I’m incredibly excited about because suppressing everything from .22 LR to .50 BMG, and now shotguns, is exactly what I enjoy.
The tactical shotgun market has become massive. With the rise of Turkish clones, it seems like every manufacturer is trying to build the ultimate tactical shotgun. Some of them are impressive, some feel cheap, and others come from companies that have spent decades building a reputation for producing industry-standard shotguns. Mossberg is one of those companies.
That is where the Mossberg 940 Pro Tactical SPX enters the conversation.
Mossberg already had a successful platform with the 940 series, but they decided to give it an overhaul. Their goal was to create a shotgun suitable for professional applications, defensive use, competition shooting, and hunting. The result is a semi-automatic shotgun that feels purpose-built rather than a hunting shotgun that simply received tactical furniture and accessories.
After spending considerable time with this shotgun, I have a lot to say about it. Before we get into my experience, though, let’s start with the specifications.
Mossberg 940 Pro Tactical SPX Specifications
- Gauge: 12 Gauge
- Chamber: 3 Inches
- Action: Gas-Operated Semi-Automatic
- Barrel Length: 18.5 Inches
- Capacity: 7+1
- Overall Length: 37 Inches
- Weight: Approximately 7.25 Pounds
- Receiver: Optics Ready
- Sights: Fiber Optic Front with Ghost Ring Rear
- Magazine Tube: Extended 7-Round Capacity
- M-LOK Compatible Forend
- QD Sling Attachment Points
- Oversized Charging Handle
- Enlarged Bolt Release
- Enhanced Loading Port
- Adjustable Stock Spacers Included
- RMSc Footprint Optic Cut with Additional Mounting Plates Included
Why the 18.5-Inch Barrel Matters
For me, one of the most important aspects of this shotgun is the 18.5-inch barrel.
I am not the tallest man in the world, standing at 170 cm. Having a shotgun with a 26-inch barrel is not ideal when you start adding suppressors to the end. The ready position on a shotgun naturally points downward and away from your body, which means a longer barrel forces you into a less comfortable position for extended periods of time.
Ideally, I want a shotgun with a threaded choke and an 18.5-inch barrel because, by the time you add a suppressor, the overall package remains manageable. It is not so long that you’re catching brush and tree limbs while hunting, nor does it feel like your barrel is extending three rooms ahead of you in a defensive situation.
That balance between compactness and functionality is one of the reasons this shotgun immediately appealed to me.
First Impressions of the Mossberg 940 Pro Tactical SPX
My first impression of the 940 Pro Tactical SPX was simple. This does not feel like a basic shotgun.
Instead, it feels like Mossberg invested time and effort into meaningful upgrades without creating something that most shooters couldn’t afford. Everything about the shotgun feels intentional.
From the oversized controls to the charging handle that is easy to manipulate while wearing gloves, every feature appears designed with actual users in mind. The loading port has been opened up considerably, making reloads faster while reducing the chances of fumbling shells or getting gloves caught during cold-weather shooting.
One feature that immediately stood out was the enlarged bolt release. What was once a small button has become a large, easy-to-find control that works regardless of the situation you’re in.
I also appreciate the fact that the bolt release incorporates a screw. It might seem like a small detail, but it demonstrates that Mossberg understands the aftermarket community. This shotgun isn’t designed to be purchased and left alone forever. Instead, it provides a platform that owners can customize and make their own.
Mossberg Learned from Past Designs
One thing worth mentioning is my experience with the Mossberg Shockwave.
My biggest complaint with the Shockwave was the safety. Because of its placement, my hand would slide forward and get chewed up during use. The redesigned safety on the 940 series is such an improvement that it honestly makes me want to revisit the Shockwave platform.
We’ll talk about some future Mossberg plans later in this article, but it is worth noting that the company clearly paid attention to user feedback.
The addition of M-LOK slots and QD sling attachment points further reinforces that idea. Whether you want a flashlight, laser, sling, or other accessories, the mounting options are already there.
To me, that says Mossberg understood this would never be a one-purpose shotgun.
Someone can buy this gun for home defense, use it for recreational clay shooting, take it hunting, or configure it however they see fit. The flexibility is built into the design from day one.
A Feature I Absolutely Love
Another feature I really appreciate is the included Vang Comp Systems shell holder.
Because it uses a Velcro-backed design, I can keep multiple shell cards loaded and ready to go inside an ammo can. If I want buckshot and slugs on one card and birdshot on another, I simply swap them out.
It reminds me of running different magazines for an AR-15. You grab the loadout you need and head out.
Having that capability included from the factory is a nice touch and demonstrates that Mossberg put genuine thought into the end-user experience.
Optics Ready Done Right
Can you actually see what you’re shooting at?
With the 940 Pro Tactical SPX, the answer is yes.
Rather than using a simple bead sight, Mossberg equips the shotgun with a bright fiber optic front sight paired with a rear ghost ring sight. That setup works extremely well and offers a substantial improvement over traditional shotgun sighting systems.
What’s even cooler is how Mossberg integrated optics mounting into the receiver.
The rear sight can be removed by taking out two screws, allowing you to mount a pistol red dot directly to the shotgun. No additional rail is required, and no extra parts need to be purchased.
It’s built right into the gun.
Defensive shotguns without optics integration feel outdated today. Mossberg clearly recognized that and decided they weren’t going to lag behind the industry.
A quality red dot can dramatically improve target acquisition and practical accuracy, regardless of whether you’re using the shotgun for home defense, hunting, or recreational shooting.
Range Performance
Let’s talk about shooting this shotgun at the range.
No, I am not a bird hunter. I don’t really have much interest in bird hunting. That isn’t to say I don’t appreciate someone bringing me some meat after a successful hunt, but my shotgun priorities tend to revolve around two things. First, I want to dust clay pigeons out of the sky for fun. Second, I want a dependable firearm for dealing with the biggest predator lurking around my property, hogs.
I have spent a lot of time throwing clays with this shotgun, and the experience has been excellent. The gun has been completely reliable throughout my testing. Every time I load it, I find myself wanting to shoot just a little bit more. There are firearms that are enjoyable, and then there are firearms that practically beg you to keep feeding them ammunition. The Mossberg 940 Pro Tactical SPX falls into that second category.
Birdshot, buckshot, and slugs have all gone through this shotgun. Hundreds of rounds later, I still haven’t experienced a malfunction. That level of reliability is exactly what I expect from a defensive shotgun, and it is exactly what I want from a shotgun that may spend time riding in a truck, sitting by a door, or getting dragged through the woods.
Recoil is another area where this shotgun really shines.
Now let’s be realistic. It is a 12-gauge shotgun. It will always be a 12-gauge shotgun. Nobody is going to mistake it for a .22 LR. There is recoil, and there always will be. What impressed me was how Mossberg managed that recoil.
The gas-operated system does an outstanding job of softening the recoil impulse. That movement of the bolt cycling back and forth creates a smoother shooting experience than many people expect from a tactical shotgun. Combined with the buttpad and overall design, the gun feels comfortable enough to shoot all day.
Running slugs through this shotgun was particularly enjoyable. Normally, I lean toward reduced-recoil slugs whenever possible. With the 940 Pro Tactical SPX, I found myself caring far less about what load I was shooting because everything remained manageable.
Accuracy with slugs was also impressive. Despite not being a rifled barrel, I was able to achieve accuracy at distances well beyond traditional buckshot ranges. That capability makes this shotgun particularly appealing for hog control around my property.
As a result, this has become my “ready by the door” shotgun whenever there’s a chance a sounder of hogs might decide to visit.
What I Like About the Mossberg 940 Pro Tactical SPX
One of the biggest strengths of the 940 Pro Tactical SPX is that Mossberg clearly listened to shooters.
The company looked at the complaints people had with older tactical semi-automatic shotguns and addressed those concerns in meaningful ways.
The larger controls are easier to manipulate. The loading port is more user-friendly. Optics compatibility comes standard. QD sling mounts and M-LOK slots provide flexibility for accessories. Capacity is generous. Most importantly, the shotgun performs well where it matters most.
At the end of the day, none of the features matter if the shotgun doesn’t shoot well.
Thankfully, this one shoots exceptionally well.
Looking at Mossberg as a company, it’s obvious they’ve evolved over the years. They are no longer focused solely on producing hunting shotguns. Their lineup now spans defensive firearms, hunting firearms, competition guns, and specialized applications.
No matter what type of shooter you are, there is likely a Mossberg configuration that fits your needs.
The 940 Pro Tactical SPX demonstrates that growth perfectly. With a different finish or a camouflage option, this shotgun could easily transition from a defensive role to a hunting role without missing a beat.
Versatility is one of its strongest attributes.
The Biggest Drawback
So what’s the downside?
The biggest drawback is price.
This is not one of those $300 Turkish clone shotguns flooding the market. The Mossberg 940 Pro Tactical SPX sits around the $1,000 mark.
That immediately puts it into a different category for many buyers.
However, I think it’s important to understand what you’re paying for.
You’re not simply paying for a brand name. You’re paying for the engineering, the development process, the improvements, and the fact that Mossberg clearly designed this firearm with the end user in mind.
Research and development cost money. Thoughtful design costs money. Quality manufacturing costs money.
In my opinion, those investments show up throughout the shotgun.
Why I Have Regrets… And Why I Don’t
Now let’s talk about the reason behind the title.
Do I regret buying the Mossberg 940 Pro Tactical SPX?
No.
Absolutely not.
I love this shotgun. I think it is an outstanding firearm.
That said, shortly after receiving my 940, Mossberg introduced two firearms that immediately caught my attention.
The first was the 990 AfterShock SPX.
The second was the 990 SPX Magpul Class III, featuring a 14.75-inch barrel in an SBS configuration.
Both firearms are chambered in 12 gauge. Capacity drops from the 940’s 7+1 configuration down to 5+1, but they are available in attractive Cerakote finishes including tan, green, and black.
So why am I so interested in those firearms?
The answer comes down to chokes.
Instead of simply providing a cylinder bore setup, Mossberg equipped these models with the Accu-Choke system.
If you aren’t familiar with what that means, here’s the simple explanation.
The ability to swap chokes dramatically increases compatibility with future shotgun suppressors.
Since Mossberg’s choke system is common and widely supported, suppressor manufacturers are much more likely to produce compatible options. That means you can realistically build a short-barreled, optics-ready, suppressor-equipped shotgun without modification.
For someone like me, who is heavily invested in suppressors, that matters.
A lot.
The idea of having a compact SBS equipped with optics, a flashlight, a suppressor, and all the modern features that made me love the 940 is incredibly appealing.
Unfortunately, that realization also means I’ll probably be spending more money.
I can already see an SBS and an AfterShock making their way into my collection sooner rather than later because they check every box I’m looking for.
Final Thoughts
The Mossberg 940 Pro Tactical SPX is a damn good shotgun.
What impresses me most is that it represents one of Mossberg’s greatest strengths as a company. They listen to shooters.
They pay attention to what people want. More importantly, they don’t simply throw features onto a firearm and hope for the best. They develop those features, test them, and make sure they actually work.
That’s because the people building these firearms are shooters themselves.
While many people will view the 940 Pro Tactical SPX strictly as a defensive shotgun, I see it differently.
I see it as an all-purpose semi-automatic shotgun.
This could easily be a one-and-done shotgun for many people. Whether you’re interested in home defense, range use, recreational shooting, or hunting, the platform is capable of handling all of those roles.
Will it be the quietest suppressor host in the world? No.
Being a semi-automatic shotgun means some noise will always escape through the action. That’s simply part of the design. Even so, I fully intend to suppress mine because that’s just what I do.
What stands out most is how complete the shotgun feels.
When I look at it, I don’t feel like I need to replace the stock. I don’t feel like I need to replace the charging handle. I don’t feel like I need to replace the controls.
Adding a sling, a flashlight, or an optic makes sense. Beyond that, the gun already feels finished.
Of course, no firearm is perfect.
The SPX is no exception.
Some shooters may encounter issues with lighter loads. A semi-automatic shotgun will never match the reliability of a pump-action after hundreds and hundreds of rounds without cleaning. Eventually, carbon buildup will begin affecting performance.
That means you’ll have to clean it.
Honestly, that’s not much of a complaint.
Firearms should be cleaned, lubricated, and maintained. Most gun owners enjoy cleaning their firearms anyway.
When everything is considered, I think Mossberg got this one right.
The 940 Pro Tactical SPX is reliable, soft shooting, feature-rich, and offers excellent capacity. It deserves a place on the shortlist for anyone looking for a quality semi-automatic shotgun.
Sure, it doesn’t resemble some of the Turkish clones currently flooding the market. If the only reason you’re buying a shotgun is because it looks like something else, then go buy the real one or the clone.
You can pick up the clone for around $400 and this Mossberg for around $1,000. Together, you’ll spend about $1,400.
The difference is that years from now, you’ll probably still be enjoying shooting the Mossberg a whole lot more.