Sig Sauer P938 Review : Single Action, Single Stack

The Sig P938 looks like either a scaled-down 1911 or a scaled-up P238. Does it perform like either, both, or neither? Read our SIG Sauer P938 review and find out!

I first reviewed this gun three years ago, but I recently had the chance to shoot it again. After putting a couple hundred rounds through it, my thoughts on this gun have shifted a bit. So, let’s dive into this updated Sig Sauer P938 review and see what’s changed.

Sig P938 Background

The Sig P938 is a single-action, single-stack, 9mm pistol. It bears a striking resemblance to both the Sig P238 from when it came, and the 1911-pattern pistol from which both are direct descendants. Since the P938 is based on the P238, and since I have a good deal of experience with both, some comparison in this article is inevitable.

Introduced just a couple of years after the P238, the P938 (are you tongue tied with the nomenclature yet?) has a steel slide and an aluminum frame. Sig elected to sharply checker the front strap of the P938, a most welcome upgrade. The controls are 1911-familiar: slide stop/slide release lever, magazine release, and of course, a thumb safety. The safety on the P938 is an ambidextrous thumb safety, and both the P238 and P938 lack the 1911’s grip safety.

As a former MARSOC Marine, I appreciate the P938’s exposed, skeletonized hammer. The trigger may look like a traditional 1911 straight-to-the-rear pull, but it’s not. It is hinged at the top like most pistols. The trigger’s motion is very short, as is reset. Somewhat disappointingly, this particular P938 (which I purchased as a new gun) has a rough, gritty trigger that isn’t terribly crisp.

The trigger guard of the P938, while compact, is designed to accommodate gloved hands, a feature that many will appreciate in colder climates. The guard’s undercut design also allows for a higher grip on the gun, improving control during firing.

The placement of the trigger allows for a natural resting position for the trigger finger when not firing, aiding in overall safety and control. The finger easily finds its place on the trigger, ready to engage when needed.

The trigger pull, while slightly gritty in this particular model, is generally short and fast, allowing for quick follow-up shots. The pull weight is consistent, providing a predictable and manageable experience for the shooter. However, the grittiness of the trigger pull on this specific P938 might require some attention, possibly a professional trigger job, to smooth out for a more satisfying shooting experience.

The P938 has an exposed, skeletonized hammer. The trigger may look like a traditional 1911, straight-to-the-rear pull, but it’s not. It is hinged at the top like most pistols. The trigger’s motion is very short, as is reset. Somewhat disappointingly, this particular P938 (which I purchased new) has a rough, gritty trigger that isn’t terribly crisp.

The P938 has the option of feeding from two factory magazines: a flush-fit 6-round magazine and an extended 7-round magazine. Personally, I only shoot this gun with the longer 7-round magazines. While the P238 is comfortable to me without the extended grip surface, I find the more powerful 9mm P938 to be too much without it.

Sig P938 Features

1 External Extractor

Allows for increased reliability.

2 Good Stock Sights

Steel, high-profile Siglite sights.

3 Lightweight and Easy to Hold

Lightweight aluminum frame with checked front strap.

4 Ambi Safety

Ambidextrous, 1911-styled thumb safety.

Sig P938 – Our Take

So, what do I think about the Sig P938? Let’s get into it!

Reliability

I have had zero reliability issues with the Sig P938. I have fired over 500 rounds through this gun with zero malfunctions, jams, or stoppages of any kind. I have fired a good variety of ammunition. Roughly 400 rounds of this has been FMJ, with about 100 of Hornady Critical Duty 9mm and Sig’s own 124-grain +P V-Crown JHP. All have function flawlessly.

One caveat: I have kept this gun studiously clean. I am a gun cleaning guy and I wouldn’t really carry a dirty gun regardless of what I carried. But with all-metal, 1911-esque designs, cleaning is probably pretty important. In any case, I haven’t had a malfunction, so it definitely hasn’t hurt anything. I would be absolutely confident recommending the P938 on the basis of its reliability.

Accuracy

The P938 is capable of some very good accuracy, especially for a handgun of its class. The excellent sights, something missing on some comparable guns, are huge contributor to this. While I found the P938’s accuracy good, I felt like it was on par with what should be expected of a handgun of this size. The one thing lacking in the P938’s accuracy category was in strings of rapid fire.

While I am able to lock the smaller P238 into an immovable grasp, I found myself unable to do so with the more powerful 9mm. I could lock the gun down but with the gun’s mere 16 ounces and very narrow grip, balancing speed and accuracy meant that speed to a big hit. This is the compromise you accept when choosing such a small pistol, which is indeed significant. However, this might be a matter of personal preference, so I won’t overly criticize it in the Report Card.

Ergonomics

The P938 loses me with ergonomics. The grip is a little too narrow for the 9mm cartridge the Sig fires. It’s a little too short with the flush-fit, 6-round magazine. And most importantly: the thumb safety. As I mentioned earlier, the thumb safety is an odd location. It sits very proximal on the thumb – almost at the second knuckle. This creates some problems.

First, it’s fairly easy for a dude like me to swipe off…but I am a 1911-guy and very accustomed to disengaging thumb safeties. For the novice or the shooters unused to manual, external safeties, it’s a little small and a little inconvenient. I would have some concerns about deploying the P938 as a defensive handgun without extensive practice at managing the safety.

Strike 2: unlike a 1911, the P938’s thumb safety isn’t wide enough to “ride” with the thumb, holding the safety down and using it as a lever to control muzzle rise. Its low profile and rear placement mean it just sort of sits under the thumb, somewhat awkwardly.

Finally, the thumb safety is very difficult to engage with one hand. I don’t think this is as important as disengagement, but it is important, especially considering the P938’s short, light trigger. I had some other, minor ergonomics issues – like the very narrow grip – but the safety is my main concern with this gun.

Closing Thoughts

I am a big fan of the 1911 and the Sig P238 was my first “real,” full-time carry gun. I should really, really like the P938. It’s just slightly larger, which should make it more shootable. On top of that, it’s chambered in 9mm which means ammo is cheaper, more commonly available, and more powerful than the marginal .380 ACP.

I don’t think the Sig P938 is a terrible gun; it does meet the overriding reliability requirement and it is fairly accurate. Additionally, some of my complaints (safety placement) might have been peculiar to me. Still, I’d have a hard time recommending the P938, even though I understand how weird it is that I fully endorse the P238. The whole just doesn’t seem to add up to the sum of its parts.

Sig P938 Pros and Cons

Sig Sauer P938 Starter Pack

Well, you decided that you’re going to go ahead and pick up a Sig Sauer P938, huh? That’s all fine and good until you realized you’ve forgotten some of the bare essentials. Browse through our quick checklist of necessities to ensure that you’ve got everything you need for a safe and efficient.

• Magazines: Sig P938 Factory Mags at Brownells
• Gun Cleaning Kit: Gloryfire Universal Cleaning Kit on Amazon
• Shooting Glasses: Don’t be that guy who ends up with hot brass in their eye because you’re too cool to wear eye protection. Check out our top picks for the Best Shooting Glasses around.
• Hearing Protection: Your hearing is one of the greatest gifts you have, but it’s very easily damaged or taken away. Find the Best Shooting Hearing Protection for you and save your ears!
• Storage: Vaultek Lifepod on Amazon

Sig P938 Gun Deals

Looking for the best deal on the Sig P938? It can be difficult if you don’t have any idea where to start. That’s why we’ve put together a shortlist of online sellers that you should check first.

Disclaimer: These are priced at time of writing. Prices and availability are subject to change.

Sig Sauer P938 – FAQs

Is the Sig P938 a good choice for concealed carry?

Absolutely. The Sig P938 is compact and chambered in 9mm, perfect for concealed carry. It’s small enough to carry discreetly and packs enough punch for self-defense, making it a reliable choice for personal protection.

Does the Sig P938 have an ambidextrous safety?

Yes, the Sig P938 has an ambidextrous thumb safety. It’s great for both left- and right-handed shooters and is styled like the 1911, making it easy to access and use.

Is the Sig P938 a good choice for self-defense?

Yes, it is. The Sig P938 is reliable and accurate, chambered in 9mm, which is a solid caliber for self-defense. Its compact size makes it easy to carry, and its dependability ensures it will work when you need it most.

Can I add rubber grips to the Sig P938?

Yes, you can swap out the factory grips for rubber grips if you prefer. Rubber grips can make the gun more comfortable to hold and help reduce recoil, giving you a more secure grip, especially in slippery conditions.

Does the Sig P938 come with night sights?

The Sig P938 is available with Siglite night sights, which are high-profile steel sights that help you see better in low light. These night sights are a great feature for a self-defense pistol.

How are the rear sights on the Sig P938?

The rear sights on the Sig P938 are solid and reliable. You can get it with either steel 3-dot contrast sights or Siglite night sights, both of which give you a clear and accurate sight picture. They’re built to last and easy to line up for accurate shooting.

Upgrades and Accessories for the Sig P938

Along with the aforementioned essentials, there’s a bunch of other things you can pick up to upgrade your pistol’s performance or improve your shooting experience. 

Best Accessories for the Sig P938

Holsters

If you plan on using this as a carry gun, you’re going to need a holster. Fortunately, there are tons of great options available. Here are some of our favorites.

Best Holsters for the Sig P938

Best Ammo for Your Sig P938

Even though you’re only shooting 6-7 rounds at a time, those rounds can quickly add up over just a day at the range. And the more ammo spent, the more your wallet’s going to feel the pain. That’s why you should always have some designated range rounds. When you’re not actively practicing with your working ammunition, firing cheap ball ammo downrange is an excellent option.

How to Care for Your Sig P938

In order to properly care for your Sig P938, you’re going to need to learn how to properly disassemble, clean, and reassemble your weapon. And there’s no better instruction on how to do just that than the one Colleene from KeepingPiece2010 put together.

Important Links and Manuals for Your Sig P938

Be sure to check out the following list of resources for this pistol. They’ll provide some more insight into the operation, specifications, and performance of this firearm.

• Sig Sauer P938
• Sig Sauer P938 User’s Manual
• Sig P938 vs Glock 43 by HuntShootLive