So you’ve finally decided to add a suppressor to your SIG Sauer P320, or at least you thought about it. I get it. You see it all the time in the movies, TV shows, you name it — silenced weapons can make you cool. The only problem? Well, you’re going to need a threaded barrel for that.

If you’re new to handguns or just looking for the best option for your personal firearm, we’ve got you covered. We have the list of the best SIG Sauer P320 threaded barrels to help you with your next purchase. Now, let’s get into it.

Top 3 Best SIG Sauer P320 Threaded Barrels for 2022

Best Budget Pick	Silencerco SIG Sauer P320 Threaded Barrel	Easy to install Works with Sig Sauer P250 Pistols Superior durability with extreme accuracy Incompatible with X5, M17, and subcompact models	$125 Shop NowClick to read my review
Best Overall	SIG Sauer P320 Factory Threaded Barrel	Direct from Sig Sauer Heat treated for maximum durability Comes with a knurled thread protector On the pricier end	$172 Shop NowClick to read my review
Best Value	Grey Ghost Precision SIG Sauer P320 Barrel	Witness hole for loaded barrel visibility Built to SAAMI Specifications Expensive	$187 Shop NowClick to read my review

Why a Threaded Barrel?

Threaded barrels are a great addition to any tactical handgun, regardless of whether you have the money for a suppressor. Additionally, threaded barrels enable the attachment of breaching muzzles, which may enhance your gun’s muzzle velocity and add a significant “cool factor” to your firearm.

Do I Need to Buy a Suppressor?

Just because you’re buying a threaded barrel doesn’t mean you need to buy a suppressor right away. The vast majority of gun owners who purchased threaded barrels for their P320 pistols intend to use a suppressor with it. Without a threaded barrel, it’s impossible to install a suppressor on your P320.

While many people have this idea in mind that suppressors are meant only for secret agents or tactical purposes, the truth is that there’s one significant reason to buy a suppressor for your pistol: to reduce gun noise. 

Suppressors do not eliminate the noise of a gunshot, but they do minimize it substantially. In a home defense situation or any indoor shooting, this is a major benefit.

A Few Limitations…

Threaded barrels have certain drawbacks. First, it gives your weapon a little more length. As little as it may seem, this can affect the SIG Sauer P320’s ability to be used in many holster configurations. For instance, any P320 holster with a closed bottom is automatically incompatible with a threaded barrel P320 and can be a serious drawback.

In short, if you don’t plan to use a suppressor or any other kind of muzzle device with your P320, then you don’t need a threaded barrel.

Buyer’s Guide in the Best SIG Sauer P320 Threaded Barrels

Before heading out to a gun shop or adding some items to your cart online, take a quick read of the most important factors to consider when looking for a new SIG Sauer P320 threaded barrel.

Durability

Investing in a well-built threaded barrel is essential if you want your firearm to last for many years to come. The best P320 threaded barrels are made of 416R stainless steel, coated with a rust and corrosion-resistant finish like nitride. But if you want to save money, opt for a carbon steel P320 barrel.

Compatibility

There are various SIG Sauer models available on the market today, like the P320 X5 and M17. Intuition tells us that P320 threaded barrels should work with all models of P320 pistols, but unfortunately, they’re not all cross-compatible.

There are also three sizes for the P320: the full-size, compact, and subcompact. Just make sure you purchase the right type of P320 threaded barrel for your pistol model. 

Accuracy

Of course, the best P320 threaded barrels should be more accurate than the factory P320 barrel. Make sure to look for a threaded barrel with a 1:10 twist rate, which is ideal for the 9mm-chambered SIG P320.

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The Best SIG Sauer P320 Threaded Barrels

Silencerco SIG Sauer P320 Threaded Barrel: Best budget pick.

The Silencerco Threaded Barrel works for both the SIG Sauer P320 and the hammer-fired P250 pistol. It comes coated in a nitride finish, giving it superior rust and corrosion resistance. It also features a 1:10 twist rate barrel. Hence, giving the P320 unparalleled accuracy.

The Silencerco Threaded Barrel is precision-machined to factory specifications and designed to work reliably with the P320 platform. There are two versions of this barrel: one for the full-size P320 pistol and one for the compact model.

Just remember that the X5 and M17 variants are incompatible with the Silencerco. But it’s compatible with all other P320s long as they’re the full-size or compact models.

SIG Sauer P320 Factory Threaded Barrel: Best overall.

Direct from the SIG Sauer company, the SIG Sauer P320 Factory Threaded Barrel comes with a nitride finish for excellent rust and corrosion resistance. Unlike most barrels on the market, the SIG Sauer factory threaded barrel is specially heat-treated for maximum durability.

This factory barrel is ready to install to your P320 and ships with a knurled thread protector to keep the barrel threads safe when it’s not in use. It’s also compatible with both compact and full-size models.

Grey Ghost Precision SIG Sauer P320 Barrel: Best value pick.

Grey Ghost Precision has been making high-quality merchandise for a very long time, and the GGP SIG Sauer 320 barrel is a great example. It’s built out of 416R stainless steel and comes in a black nitride finish for excellent rust and wear resistance. The Grey Ghost Precision SIG Sauer P320 Barrel is a match-grade barrel designed for accuracy with an optimal 1:10 twist rate.

It’s designed to handle the hottest 9mm ammunition you can get your hands on. There’s also a Witness hole on top of the barrel hood for visibility of a loaded chamber.

The GGP320 is compatible with all Sig P320 full-size handguns except those with an X5 barrel profile. If you want to use an X5 grip module, you’ll need to use a standard full-size slide with this barrel.

Our Pick

One of the most durable and long-lasting P320 threaded barrels on the market is the one straight from the company that makes the handgun, SIG Sauer P320 Factory Threaded Barrel. It’s hard to beat. And with the money you’re paying, you’re getting hardware that’s built to last. It can even handle the most powerful 9mm’s chamber in your P320.

Wrapping Up

Having a threaded barrel allows you to connect a silencer or any other muzzle attachment to your P320 with ease. Any of the barrels on this article would make a great option for your P320. But if you do end up looking for an alternative, just remember to check our buyer’s guide for the best SIG Sauer P320 threaded barrels listed above.

Just remember to double-check the compatibility of the threaded barrel with your P320 Model and choose the one that works best for you.

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