6 Best SIG P320 Threaded Barrels (2020)

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Winner
Best SIG P320 Threaded Barrel
Best Value
Best SIG P320 Threaded Barrel
Best SIG P320 Threaded Barrel
Best SIG P320 Threaded Barrel
Best SIG P320 Threaded Barrel
Sig P320 Threaded Barrel
Silencerco 9mm 1/2-28
Victory First – Brownells Edition
Brownells – SIG P320 9mm
Faxon SIG Flame-Fluted
SIG P320 Flame Fluted
Our Test Result
Test Result 9.9/10 Excellent August 2020
Test Result 9.8/10 Excellent August 2020
Test Result 9.7/10 Very Good August 2020
Test Result 9.7/10 Very Good August 2020
Test Result 9.6/10 Very Good August 2020
Value for Money
Performance
Pros
  • Very clean finish & nice design
  • Includes a Thread Protector
  • High quality & durable Nitride Finish
  • Very easy to install
  • Very accurate shooting
  • 1:10 Right-Hand Twist
  • Compatible with X5 Model
  • Very high quality Materials
  • Extremely resistant against Corrosion
  • Beautiful Gold finish & design
  • Compatible with almost any rounds
  • Super Titanium Nitride (TiN)
  • Salt Bath Nitride FInish inside & outside
  • Super simple to install
  • Longer than standard barrel
Cons
  • Non-O-Ring Thread Cap
  • Not compatible with every model
  • No Thread Protector
  • Price
  • Incompatible with M17 model
Recommended by us
Check Price
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-
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-
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Winner
Best SIG P320 Threaded Barrel
Sig P320 Threaded Barrel
Silencerco 9mm 1/2-28
Our Test Result
Test Result 9.9/10 Excellent August 2020
Value for Money
Performance
Pros
  • Very clean finish & nice design
  • Includes a Thread Protector
  • High quality & durable Nitride Finish
Cons
  • Non-O-Ring Thread Cap
Recommended by us
Check Price
-
Best Value
Best SIG P320 Threaded Barrel
Sig P320 Threaded Barrel
Victory First – Brownells Edition
Our Test Result
Test Result 9.8/10 Excellent August 2020
Value for Money
Performance
Pros
  • Very easy to install
  • Very accurate shooting
  • 1:10 Right-Hand Twist
Cons
  • Not compatible with every model
Recommended by us
Check Price
-
Best SIG P320 Threaded Barrel
Sig P320 Threaded Barrel
Brownells – SIG P320 9mm
Our Test Result
Test Result 9.7/10 Very Good August 2020
Value for Money
Performance
Pros
  • Compatible with X5 Model
  • Very high quality Materials
  • Extremely resistant against Corrosion
Cons
  • No Thread Protector
Recommended by us
Check Price
-
Best SIG P320 Threaded Barrel
Sig P320 Threaded Barrel
Faxon SIG Flame-Fluted
Our Test Result
Test Result 9.7/10 Very Good August 2020
Value for Money
Performance
Pros
  • Beautiful Gold finish & design
  • Compatible with almost any rounds
  • Super Titanium Nitride (TiN)
Cons
  • Price
Recommended by us
Check Price
-
Best SIG P320 Threaded Barrel
Sig P320 Threaded Barrel
SIG P320 Flame Fluted
Our Test Result
Test Result 9.6/10 Very Good August 2020
Value for Money
Performance
Pros
  • Salt Bath Nitride FInish inside & outside
  • Super simple to install
  • Longer than standard barrel
Cons
  • Incompatible with M17 model
Recommended by us
Check Price
-

6 Best SIG P320 Threaded Barrels

The Sig P320 has earned a great deal of reputation and confidence since the U.S. Military introduced it’s M17 variant as the main sidearm.

It is certainly an incredible weapon, but it can be upgraded to achieve higher performance levels.

Such a threaded barrel is an improvement.

Here we’ll dive further into the idea of using threaded barrels with a Sig P320, and the related pros and cons.

Also we will evaluate the best threaded barrels available on the market for the Sig P320, so you can pick the best one for yourself.

What is a SIG P320 Threaded Barrel?

A threaded barrel is a barrel that has been graved to accommodate muzzle devices with threads at the forend.

In rifles and carbines threaded barrels are extremely popular.

They are however often used for installing devices such as compensators and silencers for handguns.

These barrels allow your handgun more tactical usecases, enhancing its efficiency overall. It affects factors such as noise, recoil, rise of the muzzle and speed.

This barrels have both benefits and drawbacks which we will further analyze in this report.

Are Barrels All Threaded The Same?

Nearly all threaded barrels are the same for the simple style and purpose.

However, the barrel also has structural and other variations that influence the overall precision, firing comfort and the weapon’s reliability.

Their coating, design, and aesthetics are some key points of difference among the barrels included here.

Other barrels are coated with nitride, and others have a chrome coating.

Also very few barrels are fluted for better overall weight cooling and symmetric weight reduction.

Threaded Barrels Pros and Cons

Start reviewing some pros and cons until you get your Sig P320 a threaded barrel.

It can help you determine your needs, and make the correct choice.

Pros

Here are the main threaded barrel pros:

Connectivity with muzzle devices

A threaded barrel lets you install your firearm with a muzzle system such as a compensator or silencer.

Silencers may be useful if you are susceptible to sounds, or if you fire your firearm inside a ringing indoor area.

Diminish Muzzle Movement

Using a muzzle mechanism heightens the handgun’s forend weight.

This tends to resolve the growth of the muzzle under the impact of recoil.

Particularly while shooting rounds of .45 ACP and .40 S&W.

Might increase speed of round

A threaded barrel is almost half an inch wider than barrels which are not threaded.

This small rise in the length of the muzzle impacts the projectile and increases its velocity.

The value is around 25 fps per inch of barrel shift, according to a gross calculation.

But you’re going to get a stunning performance boost of 12 fps.

Disadvantages

These are the key threaded barrel disadvantages:

Legal Consequences

Many states don’t approve threaded barrels or muzzle systems to be used, or at least demand that you disclose and report those modifications.

Not seen regularly

Many Sig P320 owners would definitely never use their firearm with a muzzle device.

Many people view this as an add-on to innovation and don’t find it too useful.

Holster Problems and Concealed Carry 

A threaded barrel sticks a little out of the frame of a handgun.

Which can cause problems regarding holstering and comfort.

What’s more, it may impact concealment, especially with muzzle devices.

How to pick your Sig P320 Threaded Barrel

Before picking a threaded barrel you ought to weigh those considerations.

The right combination of these qualities will give you a barrel that’s sturdy and powerful.

Finish & Materials

A barrel needs to have a decent internal and exterior finish.

This means the barrel’s service life is longer, and is therefore simple to clean and repair.

Nitride and chrome are the two popular sorts of coatings.

Inside Rifling

Proper rifling significantly affects the rate of twisting which in turn affects the weapon’s accuracy.

The majority of barrels are rifled these days using either the button or 5R template.

But make sure that you keep an eye out for that.

Fluting of the Barrel

A fluted barrel incorporates optimal weight distribution for good cooling and a decrease in the weapon’s total weight.

Of course a fluted barrel is more powerful than an unfluted one.

Especially the compact frames.

Protection of the Threading

It is safer to select a barrel which includes a thread protector.

But you can still buy one individually on the plus side, too.

The Best Sig P320 Threaded Barrels Analysis

We have come up with some of the strongest barrels on the market, adhering to the above characteristics of a perfect Sig P320 threaded barrel.

These are the barrels with the most functionality and tested favorably, which would certainly suit your budget:

Best SIG P320 Threaded Barrel: Silencerco 9mm 1/2-28

Pros

  • Very clean finish & nice design
  • Includes a Thread Protector
  • High quality & durable Nitride Finish

Cons

  • Non-O-Ring Thread Cap

Best SIG P320 Threaded Barrel – What recent users say?

The barrel fits outstandingly good both for the Sig P320 and P250.

It suits fantastically, and is simple to mount. The assembly may need some modification, but that is only a minor concern.

Even the threaded cap is really useful in securing the threads while not in operation.

What makes it one of the best Sig P320 Threaded Barrels?

The barrel was made by Silencerco, which is also a renowned silencers maker.

The barrel has a nitride finish which makes wear and tear simple to clean and also very durable.

Plus, both full size and portable P320 versions are available.

For whom is this Sig P320 Threaded Barrel suited?

The barrel is great for those with silencers who want to spend some time at the range.

The barrel is also fine for EDC due to its impeccable nitride coating, without a suppressor mounted with it.

It is suitable even for people attending tactical shooting courses.

Which things could be improved upon?

The barrel is compatible with both the small and full-size Sig P320 versions and the P320.

But due to their geometry and size limitations respectively, it does not suit the Sig P320 M17 and the Sig P320 X5 versions.

But be sure to keep an eye out.

Verdict: Best SIG P320 Threaded Barrel

The Silencerco barrel is a suitable match for the barrel you have built in your plant.

It has an esthetically pleasing nitride finish, and works with silencers exceptionally well.

Best SIG P320 Threaded Barrel: Victory First – Brownells Edition

Pros

  • Very easy to install
  • Very accurate shooting
  • 1:10 Right-Hand Twist

Cons

  • Not compatible with every model

Best SIG P320 Threaded Barrel – What recent users say?

The barrels appear to fit the users’ needs properly.

The nitride-coated finish imparts a stupendous look and does not damage the anti-glare coating when firing.

The barrel shoots flawlessly with no complications, and is highly reliable at the weapon’s highest effective size.

What makes it one of the best Sig P320 Threaded Barrels?

Crafted and built under the guidance of a seasoned and esteemed tactical trainer, the barrel contributes to its reputation.

In addition, the barrel was placed at a fair price point because it adheres to all budgets.

For whom is this Sig P320 Threaded Barrel suited?

This can be best seen for Preppers and offensive shooters.

The barrel offers you the power to install muzzle systems, and is itself accurate.

Because of the added precision and shooting efficiency it is easier to substitute the OEM barrel with this weapon.

Which things could be improved upon?

The barrel does not fit M17 versions, and does not accept conversion kits.

That may be a downside, if you want to switch calibers. Otherwise the barrel is fine exactly as it is.

Verdict: Best SIG P320 Threaded Barrel

The first barrels of the Victory Sig P320 are unique barrels of the Brownells version, which were produced with absolute precision which quality control.

Its elegant style and robust construction render the factory barrel a very attractive alternative.

Best X5 SIG P320 Threaded Barrel: Brownells – SIG P320 9mm

Pros

  • Compatible with X5 Model
  • Very high quality Materials
  • Extremely resistant against Corrosion

Cons

  • No Thread Protector

Best X5 SIG P320 Threaded Barrel – What recent users say?

The aspect that this barrel users enjoy most about is its connectivity with the X5 framework.

Moreover, traditional rifling adds to round pace and reach.

This is a barrel of maximum length, which is suitable for self-defense which EDC.

What makes it one of the best Sig P320 Threaded Barrels?

The construction quality and rifling are the most impressive aspects of this barrel.

The barrel is consistent with most versions of the Sig P320 (with maybe some modifications), and has been quite well designed to fit even the lowest budget.

For whom is this Sig P320 Threaded Barrel suited?

The barrel is great for target shooters and people with EDCs.

This is a full-sized barrel, which fires exactly around this weapon’s entire length.

But it’s ideal for cases of self-defense. It is also suitable for target practice, as well as showing beginner shooters the fundamentals.

Which things could be improved upon?

The barrel has traditional rifling which adds to the efficiency of the barrel but also takes time to clean.

Plus, a thread protector is not included with the kit so you need to check and order one separately.

Verdict: Best X5 SIG P320 Threaded Barrel

This Sig P320 barrel was crafted exclusively by Brownells.

It is a full-size barrel for any bag, with traditional rifling, standard coating and a fitting price tag.

Threaded barrels compliant with the X5 variants are very tough to get though and this is the strongest of them.

Best Compact SIG P320 Threaded Barrel: Faxon SIG Flame-Fluted

Pros

  • Beautiful Gold finish & design
  • Compatible with almost any rounds
  • Super Titanium Nitride (TiN)

Cons

  • Price

Best Compact SIG P320 Threaded Barrel – What recent users say?

The barrel boasts impeccable production consistency, which when mounted on the pistol has tight tolerances.

Because of its flame-fluted nature it fires flawlessly, and even matches the lightweight and portable Sig P320.

The barrel’s muzzle end does not stick too far out of the picture, either.

But it’s not causing device holstering, security or concealment concerns.

What makes it one of the best Sig P320 Threaded Barrels?

Aesthetics, longevity and ergonomic nature are the key reasons for why we included it on our chart.

The barrel coating is not only desirable but it also gives the barrel excellent wear and corrosion protection.

And weight loss due to fluting often assists with realistic handling.

For whom is this Sig P320 Threaded Barrel suited?

EDC consumers of the Sig P320 compact would likely be utilizing the barrel.

The barrel’s architecture and finish prevents the likelihood of any problems surrounding feeding and efficiency, whatever.

Moreover it is useful for training as traditional rifling functions very well with cast bullets.

Which things could be improved upon?

Might shorten the barrel just a little bit. To be precise, by about 0.5 centimeters.

Therefore, it does not cause any holster problems, since the barrel is to be used in a lightweight pistol.

Plus the chamber is not labelled with the size, which may be a challenge for individuals utilizing conversion kits.

Verdict: Best Compact SIG P320 Threaded Barrel

This barrel of the Sig P320 has an eye-catching look and a robust structure which can endure the test of time.

The fluting helps carry the knife, and quickly and easily detach the knurled thread cap.

A perfect complement to that for consumers of EDC and CCW.

Best 9mm Compact SIG P320 Threaded Barrel: SIG P320 Flame Fluted

Pros

  • Salt Bath Nitride FInish inside & outside
  • Super simple to install
  • Longer than standard barrel

Cons

  • Incompatible with M17 model

Best 9mm Compact SIG P320 Threaded Barrel – What recent users say?

Its consistency is the most satisfying and outstanding aspect in this barrel.

Combined with the flamed fluting, the salt-bath nitride finish on both sides makes the barrel more powerful and aesthetically appealing.

Furthermore, the easy installation and the extra length is also a key factor in selecting this barrel.

What makes it one of the best Sig P320 Threaded Barrels?

The barrel is one inch longer than the barrel of the factory and helps with precision.

Additionally, the fluted style offers weight reduction and improved cooling, so it can be used for fast shooting sessions.

The protection of the thread is knurled and provides a stronger grip when attaching or extracting it.

For whom is this Sig P320 Threaded Barrel suited?

The barrel is suitable for both defensive and competitive shooting.

Because of its light weight, extra length and improved cooling capabilities, it makes for more controlled, precise and faster follow-up shots on the target.

Even, the muzzle is suitable for self-defense too. Great for experienced and beginner shooters.

Which things could be improved upon?

There isn’t much space for change in this barrel.

The extra length does, however, alert the customer of possible holstering and concealment problems.

Verdict: Best 9mm Compact SIG P320 Threaded Barrel

For the Sig P320 this is a perfect 9 mm barrel.

The fluted shape increases the shooter’s controllability over the firearm, and facilitates fast follow-up shots.

The barrel is around an inch longer than the OEM barrel and helps with precision. This barrel is ideally designed for professional shooting.

6th Best Compact SIG P320 Threaded Barrel: Faxon Firearms

Pros

  • Great value for the money
  • Unique PVD Coating look
  • Very durable

Cons

  • Incompatible with M17 & X5 Model

6th Best Compact SIG P320 Threaded Barrel – What recent users say?

The barrel has been found to be of impeccable consistency and faultless work, according to the recent consumer feedback.

This is a full-size barrel, which works extremely well on precise lands.

What makes it one of the best Sig P320 Threaded Barrels?

The PVD coating which gives the product an aesthetically pleasing look is very special in this barrel group.

Plus the traditional coating renders the weapon useable for almost all forms of ammunition, including cast lead.

In addition, the barrel is fluted and properly designed to aid with the precision and pace of the developing projectiles.

For whom is this Sig P320 Threaded Barrel suited?

As this is a full-length barrel, the usage for EDC and instruction is more possible.

The barrel is of reasonably good quality to be used in competition although this would depend on the user’s personal judgment.

People who want to show off their weapons may often use the barrel ‘s presence to their advantage.

Which things could be improved upon?

As this is a full-size barrel, the threading on the end of the muzzle contributes to the maximum length and may trigger holster problems.

But you need to select a good holster with some extra room or an open-end to easily fit your pistol.

Verdict: 6th Best Compact SIG P320 Threaded Barrel

This Faxon barrel is filled with software, and offers the best value for your dollars.

The traditional rifling won’t restrict you to a single form of munition.

And the barrel ‘s look and finish is really something to brag about.

Final Verdict

These muzzle systems aid with noise reduction and decreased recoil.

They also influence the weight of the gun and its handling.

A good threaded barrel must be robust, with resistant coating and correct measurements to improve a weapon’s performance.

SIG Sauer P320 fullsize pistol in 9mm Luger

“Ambitious Tupperware” – under this heading we published a test article about the SIG Sauer P320.

The colleagues secured a fresh specimen and subjected it to the tough IPSC practice in training and competition.

For the US subsidiary of SIG Sauer, the P320 manufactured in Newington, New Hampshire, USA, and especially the full-size version, seems to be a great success.

In addition to various individual US police departments – such as the Hight Point N.C. or the Hooksett N.H. Police Department – the Oklahoma Highway Patrol has also procured the extremely versatile service pistol.

In addition, the Thai police force in particular is probably planning to purchase 150,000 pistols from the new P320 series.

However, it is also enjoying growing popularity in the sporting sector, which among other things has recently prompted SIG Sauer USA to set up a 26-member factory team (www.teamsigsauer.com), whose members primarily compete with the full-size version of the P320 in USPSA, IDPA, 3-Gun and NRA Action Pistol. The first national successes are also already in their hands.

For example, SIG Sauers top marksman Max Michel Jr. was able to win the Production rating at this year’s US Steel Challenge Nationals with a P320 full-size in 9 mm Luger with a result that would not only have earned him victory in the Standard Class, but also a 6th place in the overall standings.

In addition, he was only 0.3 seconds slower with the P320 on the 8 stages per round on average than with his highly bred match pistol for the Open Class.

SIG Sauer P320: Love at first sight

The very first visit to the shooting range, where the pistol was actually only to be shot briefly, was so positive that the decision was made to give the P320 full-size pistol a real baptism of fire – it was to be used to compete in the German IPSC Championship in the Production Division, which took place only a few weeks later.

The author’s favorite all-steel competition rifle was relegated to the bench in the form of a SIG Sauer X-Five Allround, and the aim was to get as well prepared as possible for the new rifle in the three weeks remaining until the championship.

Some of you may be wondering why you would take such a risk.

But the answer is found quite quickly.

The P320 Fullsize was immediately convincing with its extremely good hand position and its pleasant recoil and upstroke characteristics.

And the partially preloaded trigger mechanism was also easy to control, so that curiosity soon prevailed as to how the purist P320 Fullsize would perform in the field of sports pistols a la Tanfoglio Stock II/ III or CZ SP-01, which were created especially for the Production Division.

So what else could be done than to gain valuable experience with it over the 12 demanding stages of the German Championship and to have a realistic performance comparison with established models in the end?

SIG Sauer P320: Minimally modified

The P320 Fullsize is delivered with a rigid rear sight, with both the front sight and the rear sight having white contrast inlays; the position of the point of impact can be changed by moving or replacing the sight elements to the side.

Thankfully, SIG Sauer used the dimensions of the proven P226 series for the dovetail guide, so that the inclined user can choose from a wide range of interchangeable sights.

We ourselves made use of this possibility quite quickly, because the standard sighting did not appear to us to be optimal for the intended purpose.

On the one hand, the sight image appears somewhat overloaded by the contrast marks and on the other hand, the 3.5 mm wide front sight covers too much of the target.

For this reason, the front sight was quickly exchanged for a 2.3 mm wide front sight of a SIG Sauer X-Five from our own stock and the rear sight for one without twilight marks/contrast points.

In no time at all, our test weapon now showed a sighting pattern that was optimal for IPSC shooting in the eyes of the author.

After the DM, we received an exchange sight from the well-known American accessory manufacturer Dawson Precision from Texas (www.dawsonprecision.com), which has since been mounted on the gun.

The set consists of a rigid rear sight as well as a slightly undercut front sight with a width of 2.54 mm and fits from the height ideally to standard 124 grains full metal jacket (although in our test we would still consider the change of the point of impact for IPSC shooting to be within the acceptable range, even with heavier projectiles – such as GECO 154 grains).

Except for the replacement of the sight, no other changes were made to the weapon.

In particular, the trigger was left in its factory condition. Anyway, the IPSC rules and regulations set narrow limits here with regard to further revision; for example, only polishing of the relevant sliding surfaces is permitted and a minimum trigger weight of 2.27 kg must be maintained for the first shot in double action mode (for pistols with a firing pin lock for each shot).

Since the trigger of our test specimen broke at an average value of 2,960 grams from five measurements, had a pleasing characteristic with clearly defined advance and pressure point and also the return travel was pleasantly short, we considered further tuning measures unnecessary.

Often enough, weapons with polymer grips have comparatively smooth grip surfaces, which make it difficult to get a secure hold during rapid firing sequences.

The only remedy is to permanently roughen the grip with a soldering iron (so-called “stippling”; but according to the rules, this is not allowed for grips) or to apply skateboard tape.

But not so with the P320 Fullsize.

The grip module has a pleasantly non-slip structure all around, which is very useful even for the fastest shot sequences, and the three different sizes of the grip module – small, medium and large – can also have a significant effect on the grip range.

Unfortunately, there are currently no interchangeable frames available in USA, and the pistol will initially only be delivered with the 33.4 mm wide Medium frame.

A decisive advantage of the P320 is therefore unfortunately not available at the moment.

On page 2 you will find out how the SIG Sauer P320 performed in competition and you will also find all technical data and shooting performance.

The SIG Sauer P320 tested in competition

In the end, it was not enough for victory or a podium finish in the US Production Division Championship, but the author was able to achieve a respectable 4th place with the young P320 Fullsize with 95.63 percent.

In view of this result, the P320 Fullsize can justifiably be credited with sporting ambitions, so that at least in our test it emerged as the winner.

Even in the heat of the competition, the P320 was able to fully convince and at no time did it give the feeling of missing the proven all-steel competition weapon.

Thanks to the very short return travel of the trigger and the well controllable recoil, shortest shot-to-shot times were reproducible at any time.

In addition, the trigger geometry and the almost single-action characteristic with preferred travel and subsequent pressure point almost made you forget that you were shooting a pistol with a firing pin lock.

The outstanding precision potential provided the necessary self-confidence even with the smallest target media or more distant targets.

The other equipment features such as the grippy through-loading grooves located far to the front, the rough surface structure of the grip module, the highly grooved trigger guard or the easy-to-reach magazine release also come in handy when hunting for points in fast, practical pistol shooting.

With the new SIG Sauer P320 in .45 ACP on the shooting range:

In terms of handling, the test weapon made a thoroughly pleasant impression.

The magazine release and the breech catch lever were easy to reach with the thumb, but with a conventional two-handed action with both thumbs facing the muzzle, they were otherwise just far enough away that the controls could not be operated by mistake.

Due to the slim magazine and the equally slim grip, the hand position is more similar to a conventional nine para pistol than a typical 45 with a double row magazine.

Without exception, the test specimen ejected the fired cartridges with great momentum.

The P320 always repeated even the weakest factory cartridges reliably, even in the three-finger grip with extra-flap pistol.

Despite the relatively low weight for a 45 in service format, the firing characteristics remained pleasantly gentle.

The upstroke was noticeably stronger than, say, a pistol in 9 mm Luger, but the recoil behavior remained well controllable even when firing +P ammunition.

The trigger of the 45 was convincing on the shooting range both in fast firing ranges and in comfortable target shooting.

For a trigger system with a medium-length travel, which does not require any additional manual safety devices, the P320 shot itself out of the box.

For purely sporting use, a drier trigger would be desirable, as would an adjustable match sight.

However, this version was not developed for competition, and alternatively SIG Sauer also builds the P320 as an X-Five for the sports sector.

Our test verdict – this is how we judge the SIG Sauer P320 in .45 ACP

In view of the appealing shooting performance and clean workmanship, the .45 ACP version of the P320 also appears to be a good choice for anyone interested in a fully-grown polymer pistol in the old US ordnance caliber.

In addition, P320 does not afford any weaknesses in terms of concept, thanks to its safe dismantling and modular design with adjustable grip area.

And who knows: Maybe in the future, we will succeed in extending the modular system of the P320 in 9 mm, .357 SIG and .40 S&W to the 45 mm models.

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