• Reading time:22 mins read
  • Post category:Barrels
  • Post last modified:April 6, 2024
  • Post published:December 22, 2022

If you’re an avid shooter looking to improve the accuracy of your Sig Sauer P365, then you’ll need the best P365 barrel available. With so many different models, types, and materials on the market, it can be hard to know which one is best for you. That’s why we’ve set out to test and compare every top-rated P365 barrel in order to bring you a comprehensive list of what we believe are some of the highest-quality options currently available. Whether you need a factory replacement or an aftermarket upgrade, we think this selection will have something that meets your needs and budget! 🔥😎

Best P365 Barrel

What is P365 Barrel? ⬇️

A P365 Barrel is a replacement for the P365 semi-automatic pistol manufactured by Sig Sauer. It allows users to customize their P365 to meet their needs and preferences, such as increasing accuracy or adjustability. Those barrels are available in various sizes, finishes, and materials.

When purchasing it, it’s important to think about several factors:

  • 1️⃣ size;
  • 2️⃣ finish;
  • 3️⃣ material types;
  • 4️⃣ cost.
Our Top Pick
Faxon Firearms – Straight Fluted Barrel For Sig Sauer P365
Upgrade your Sig Sauer P365 with the Faxon Firearms Straight Fluted Barrel – a dependable 9 mm Luger barrel fabricated to perfection from stress-relieved 416-R stainless steel. The exterior is then coated in an impressive black Nitride or PVD finish, providing you with increased lubricity, durability, and resistance against wear.
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Features 🔍

  • 📌 provide improved accuracy and distance shooting capabilities over factory-standard options;
  • 📌 offer an increased muzzle velocity ➡️ competition shooters seeking maximum performance;
  • 📌 feature optimized twist rates ➡️ better bullet stability at longer distances;
  • 📌 improved barrel harmonics ➡️ reduced rifle movement during firing;
  • 📌 include fluting ➡️ to reduce weight and resist corrosion while providing extra rigidity and strength;
  • 📌 have porting or compensators installed ➡️ further increase recoil control and accuracy.
Our Top Pick
True Precision Sig Sauer P365 Threaded Barrel
The True Precision Sig Sauer P365 Threaded Barrel is a thing of beauty. Crafted with certified US-sourced 416R Match Grade stainless steel, it features improved rifling techniques that provide superior fitment and lockup. Plus, you can choose from the array of finishes on offer to add an extra level of sophistication and quality control standards are set at their highest for your ultimate satisfaction.
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Benefits ♛

  • ✔️ a longer internal length ➜ more rounds in each magazine, allowing you to carry more ammunition with you;
  • ✔️ a threaded muzzle ➜ enabling the attachment of various accessories such as compensators or suppressors;
  • ✔️ extended profile ➜ to offer improved accuracy and reduced recoil due to its increased weight;
  • ✔️ equipped with a stainless steel construction ➜ ensures superior durability and corrosion resistance compared to other barrels.
Our Top Pick
True Precision Pistol Sig P365 XL Barrel, Threaded
Experience the ultimate in accuracy and reliability with the True Precision Sig Sauer P365 Threaded Barrel. Crafted from US-sourced certified 416R Match Grade stainless steel, this barrel boasts superior craftsmanship and quality control standards behind its enhanced rifling techniques, advanced fitment and lockup, as well as a range of finishes that set it apart from other models.
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Best P365 Barrel Reviews

#1 True Precision Sig Sauer P365 Threaded Barrel

True Precision Sig Sauer P365 Threaded Barrel

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Are you searching for a barrel that offers maximum precision and reliability? Note the True Precision Sig Sauer P365 Threaded Barrel. Designed and manufactured to the strictest quality standards with US-sourced certified 416R Match Grade stainless steel. Enhanced rifling techniques, advanced fitment and lockup, a range of finishes, and higher quality control standards set these barrels apart from others. Each P365 Threaded Barrel measures 3.76 inches with 1/2×28 threads per inch and a 1-10 twist rate for superior accuracy with the 9mm Luger cartridge. Upgrade your Sig Sauer pistol today!

Video review

Pros:
  • US-sourced certified 416R Match Grade stainless steel construction
  • Enhanced rifling techniques for superior accuracy
  • Advanced fitment and lockup
  • Range of finishes available
Cons:
  • No suppressor thread option is available

 

#2 True Precision Standard Barrels

True Precision, Inc. - Standard Barrels For Sig 365

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True Precision, Inc. offers the standard barrels for Sig 365 equipped with exceptional precision and quality; perfect for competitive shooters. All barrels are made from US-sourced certified 416R Match Grade stainless steel, ensuring both peak accuracy and reliability. Manufacturing processes make a crucial difference – True Precision implements a proprietary broaching cut method to quickly produce rifling with enhanced techniques that guarantee an impeccable fit. Furthermore, these barrels are crowned using a 10-degree match target crown to provide equal gas dispersion and maximum accuracy capabilities. Boasting SAAMI-specific chambers and polished feed ramps – these features provide outstanding performance in any shooting scenario. With superior building standards that supersede industry norms, True Precision barrels for Sig 365 are always the best choice for competitive shooters looking for optimal performance; accuracy, and reliability that you can count on from shot to shot!

Pros:
  • The SAAMI-specific chamber provides excellent performance in any shooting scenario
  • Polished feed ramps
  • Heat treated to Speed 42-44 Rc
Cons:
  • More expensive

 

#3 Faxon Firearms Straight Fluted Barrel

Faxon Firearms - Straight Fluted Barrel For Sig Sauer P365

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Introducing the Faxon Firearms Straight Fluted Barrel For Sig Sauer P365 – a reliable 9 mm Luger barrel machined with state-of-the-art precision from stress-relieved 416-R stainless steel. The barrel is then treated with a black Nitride, or PVD coating for enhanced lubricity, durability, and wear resistance. With better-than-factory tolerances built in, you can trust that barrel will provide a consistent, tighter lockup than the original Sig Sauer stock model. As an added bonus, barrels can “drop in” to factory slides without any gunsmithing required.

Pros:
  • Black Nitride and PVD coating for enhanced lubricity, durability, and wear resistance
  • No gunsmithing required
  • Easily customizable
Cons:
  • Not compatible with P365XL models

 

#4 SIG Sauer P365 Factory Replacement Barrel

SIG Sauer P365 9 mm Factory Replacement Barrel

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Need a reliable and accurate factory replacement barrel for your SIG Sauer P365 Pistol? The SIG Sauer P365 9mm Factory Replacement Barrel was made with strength and precision in mind. Created specifically for the SIG Sauer P365, this pistol barrel provides shooters with the trusted reliability they need in the field or at the range. Crafted from superior-grade materials, this extremely hard and durable black replacement barrel guarantees accuracy, strength, and reliability every time it is used. Enjoy all the benefits of having a high-performance factory firearm without breaking the bank when you purchase your SIG Sauer P365 9mm Factory Replacement Barrel. With such an impressive combination of quality and value — what more could you ask for? Get your hands on one today!

Pros:
  • Highly reliable and accurate factory replacement barrel
  • Comes in a classic black finish, making it aesthetically pleasing
  • Expertly designed to provide maximum precision with every shot
Cons:
  • Prone to rusting or corroding if not properly cared for

 

#5 Strike Industries SIG Sauer P365 Barrel

Strike Industries SIG Sauer P365 Barrel View on OpticsPlanet

Experience the exemplary performance and quality of the Strike Industries SIG Sauer P365 Barrel. This fluted barrel is crafted with a 416R stainless steel construction, coated in black nitride for superior wear resistance and superior smoothness. It has a reverse target crown to protect rifling at the end of the barrel so you can trust its longevity and reliability. Plus, it is built with convenience and ease of use in mind so installation is quick and easy as a direct drop-in replacement or for a newly assembled gun. Achieve optimal aesthetics, performance, and consistent projectile accuracy with the Strike Industries SIG Sauer P368 Barrel—the choicest option for expert marksmen! Pair this barrel with Strike Slide for SIG Sauer P365 for an unmatched build!

Video review

Pros:
  • Fluted design reduces weight and increases cooling
  • The reverse target crown protects rifling at the end of the barrel
  • Drop-in installation for quick and easy assembly
Cons:
  • Expensive compared to other P365 barrels on the market

 

#6 Rival Arms SIG Sauer P365 Pistol Barrel

Rival Arms SIG Sauer P365 Pistol Barrel

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Get the most out of your SIG Sauer P365 with a Rival Arms Barrel. Crafted from the highest grade of stainless steel and treated with special coatings, these barrels provide accuracy, performance, and consistency round after round. Threaded barrels are compatible with after-market accessories like suppressors or compensators for an even more custom experience. Plus, each barrel is precision polished for maximum performance that rivals custom work. Whether shooting for competitions or for fun, you can trust the quality of Rival Arms to bring your best results every time. Grab a barrel today and up your shooting game!

Pros:
  • 6 groove rifling provides improved accuracy
  • PVD coating creates a durable barrier against wear and corrosion
  • Target crowned muzzle increases precision while shooting
  • No gunsmith is required for the installation
Cons:
  • PVD coating may wear with extended use

 

#7 Grey Ghost Precision Match SIG P365 Pistol Barrel

Grey Ghost Precision Match SIG P365 Full Size Non-Threaded Pistol Barrel
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For firearm aficionados demanding a robust and reliable pistol barrel, the Grey Ghost Precision Match SIG P365 Full-Size Non-Threaded Pistol Barrel is an ideal option. Manufactured from some of the toughest materials, this product will provide you with years of strength and durability. Grey Ghost Precision has been creating impressive products for quite some time now and the Grey Ghost Precision Match SIG P365 Full-Size Non-Threaded Pistol Barrel is their way of delivering superior quality to their customers. The black nitride finish gives it a sleek look while providing excellent corrosion protection as well as improved lubrication. This product also boasts exceptional accuracy and performance, making it excellent for competitive or casual shooting at the range.

Pros:
  • Constructed from durable and reliable materials
  • Sleek black nitride finish
  • Excellent corrosion protection and lubrication
  • High accuracy and performance for competitive use or casual shooting at the range
Cons:
  • Non-Threaded Barrel may limit customization options

 

#8 Brownells Barrels For SIG P365 9mm

Brownells - Barrels For SIG P365 9mm
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Get the most out of your Sig P365 with Brownells Barrels for the 9mm. Premium grade Match-Grade Barrels are precision machined from hardened 416R stainless steel to exacting dimensions, ensuring a tight lockup and long-lasting performance. Get increased accuracy that you didn’t expect with a drop-in installation process that should be a breeze on most guns. Plus, the extra-hard Black Nitride finish resists wear and helps protect against corrosion. Upgrade your carry gun today with Brownells Barrels for the 9mm Sig P365 – experience reliable accuracy like never before!

Pros:
  • Extra-hard Black Nitride finish resists surface wear and corrosion.
  • Button-rifled bore with standard, 1-10″ right hand, 6 groove rifling provides increased accuracy potential.
  • Available in plain muzzle or Threaded (1/2″-28 tpi) models to enable installation of compensator or sound suppressor options if desired
Cons:
  • May require some fitting for a proper drop-in installation on certain P365s

 

Best P365 XL Barrel Reviews

Are you wishing to purchase the best possible barrel for your P365 XL? If so, then you’ve come to the right place. In this part of the post, we will uncover which P365XL barrel is the highest rated in terms of performance, accuracy, and durability. 😎

#1 True Precision Pistol Sig P365 XL Barrel, Threaded

True Precision Pistol Sig P365 XL Barrel, Threaded
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The True Precision Pistol Sig P365 XL Barrel is the perfect addition to any precision shooting setup. Manufactured in specialized factories from US-sourced 416R Match Grade stainless steel and put through a proprietary broach cut rifling process, the barrels will guarantee peak accuracy and reliability for target shooters and gun enthusiasts alike. With enhanced rifling techniques, better overall fit and lockup, plus a choice of high-quality finish options, this barrel stands above the competition – both original OEM designs as well as other aftermarket barrels.

Video review

Pros:
  • Easy to install drop-in design
  • Advanced proprietary broach cut design specifically engineered for increased accuracy potential
  • Broach cut 6 groove rifling allows for all ammo types to be used safely, including cast lead
  • Lifetime performance warranty on function
Cons:
  • Does not fit the P365X MACRO
  • More difficult to maintain and clean due to the intricate design

 

#2 True Precision Pistol Sig P365 XL Barrel, Non-Threaded

True Precision Pistol Sig P365 XL Barrel, Non-Threaded
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The True Precision Non-Threaded Barrel for the SIG Sauer P365 XL is designed and machined to exacting standards, providing you with a highly accurate and reliable component. Constructed from premium US-sourced 416R match-grade stainless steel, this barrel uses advanced rifling techniques and boasts better fitment, lockup, finish options, and improved quality control standards compared to regular OEM designs. When you’re looking for a barrel that delivers consistent accuracy in every shot, choose the True Precision Non-Threaded Barrel for your SIG P365 XL.

Pros:
  • Broach cutting off the bore ensures precision engineering
  • Better overall fit, lockup, and finish options than OEM designs
  • Higher quality control standards compared to other aftermarket barrels
  • Consistent performance shot after shot
Cons:
  • Higher cost than some other P365 barrels
  • Not available with threaded barrel option

 

#3 Zaffiri Precision Sig P365XL Flush and Crown Pistol Barrel

Zaffiri Precision Sig P365XL Flush and Crown Pistol Barrel
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The Zaffiri Precision Sig Sauer P365XL Flush and Crown Pistol Barrel is the flawless accessory to upgrade your Sig pistol. Precision-made with 416R stainless steel, this barrel offers exceptional accuracy that you can depend on. Featuring a SAAMI spec chamber, this barrel fits easily into your existing SIG handgun and performs well with lead, plated, and jacketed bullets. Upgrade your SIG today and experience the performance you demand with this match-grade barrel from Zaffiri Precision.

Pros:
  • SAAMI spec chamber that fits easily into existing SIG handguns
  • Target crown and oversized lock-up area
  • Fully supported chamber and improved feed ramp design
  • Three finish options
Cons:
  • Installation of the barrel requires gunsmithing skill
  • Expensive compared to other barrels

 

#4 Rival Arms SIG Sauer P365 Xl Pistol Barrel

Rival Arms SIG Sauer P365 Xl Pistol Barrel
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The Rival Arms SIG Sauer P365 XL Pistol Barrel is precision-crafted from high-quality 4340 steel and finished with a PVD (physical vapor deposition) coating. Delivering optimal accuracy, optimal performance, and guaranteed longevity round after round, this barrel is the perfect addition to your SIG Sauer P365 XL. The barrel is also thread compatible with accessories like suppressors and compensators — allowing you to customize and fine-tune your shooting experience. With an overall weight of 0.3 lb, it’s light enough not to impact your gun’s balance yet heavy enough to ensure long-lasting durability — making it the ultimate match-grade barrel available on the market today.

Pros:
  • CNC-machined from billet ensures accuracy, performance, and longevity round after round
  • Target crowned muzzle creates optimal accuracy
  • No gunsmithing required
  • Compatible with suppressors and compensators for customization options
Cons:
  • Can be difficult to find due to limited production

 

FAQ 🤔

Does the SIG P365 have a match-grade barrel?
The answer is yes! SIG P365 pistols come with factory-installed match-grade barrels that are capable of delivering superior accuracy. This makes it an excellent choice for competitive shooting, as well as home and self-defense scenarios.
Will a P365 barrel fit a P365X?
Standard P365 barrels are not compatible with P365X models, because it requires a specific P365XL barrel sold by SIG Sauer, which is made to fit the longer slide of the P365X, and feature an extended muzzle that increases accuracy and keeps cycling smoothly at higher velocities.
What is SIG P365 barrel length?
Its length is 3.1 inches, making it one of the shortest barrels in its class. This size makes it ideal for concealed carry or even pocket carry applications while still providing excellent accuracy and velocity.
What's the difference between SIG P365 and P365X?
The P365 and P365X models feature some differences in design. The P365 is the original model, featuring a 3.1-inch barrel with a capacity of 10 rounds while the P365X features an extended 3.7-inch barrel, increasing its capacity to 12 rounds. Additionally, the P365X has an optics package included, allowing it to accept micro red dot sights directly on the slide without adapters or mounting plates.
How many shots can the P365 barrel fire?
P365 barrels are designed to fire between 500 and 1,000 shots before needing to be replaced, so they can provide many years of service. The number of shots also depends on the ammo used, as some brands may produce more wear-and-tear on the P365 barrel than others.

Conclusion 🙂

Picking the right P365 barrel for you can be a daunting task. With so many different options on the market, it’s hard to know which one will work best for your needs. We hope that this Best P365 Barrel Buyer’s Guide has provided some useful information and product reviews to help make your decision easier. Whether you decide on an aftermarket P365 barrel or choose a factory model from Sig Sauer, we are sure that with proper research and consideration of all factors involved in choosing the perfect P365 barrel for you, you’ll find what works best! 😎❤️

 

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