True Precision P365 Threaded Barrel – Black Nitride 3.1"
Not Yet Rated | Write the First Review SKU: 222-TRU-TP-P365B-XTBL
UPC: 719000000000
MFG#: TP-P365B-XTBL

True Precision Threaded Barrel for Sig P365 – Black Nitride | 3.1" 9mm

Upgrade your everyday carry or range pistol with the True Precision 1/2x28 Threaded Barrel for Sig P365—engineered to outperform factory barrels in both precision and durability. This drop-in barrel is compatible with 3.1" P365, P365 SAS, and P365X 9mm pistols, making it the perfect choice for SIG owners seeking better accuracy, cleaner aesthetics, and suppressor-ready performance.

Precision-machined in the USA from USA-sourced 416R stainless steel, each barrel is broach cut for accuracy and treated with a Black Nitride finish that boosts corrosion resistance and longevity while reducing friction. The 1/2x28 threaded muzzle allows easy pairing with suppressors or compensators, and the improved feed ramp ensures reliable cycling with a wide range of ammunition—including defensive and hollow point rounds.

Whether you’re looking for a tactical upgrade or enhanced performance in competition or concealed carry, this barrel delivers with style and dependability.

🔧 Key Features:

• Designed for Sig P365, P365 SAS, and P365X (3.1” barrel models)

• Precision broach-cut rifling supports all 9mm ammo types, including cast lead

• Black Nitride treatment for enhanced wear resistance and easy cleaning

• 1/2x28 threaded muzzle – compatible with most suppressors and comps

• Improved feed ramp geometry for increased reliability

• Drop-in fit – no gunsmithing required

• Proudly made in the USA

Looking to upgrade your SIG P365? Explore more SIG P365 upgrades to build the perfect carry or range setup. This True Precision threaded barrel also pairs seamlessly with our muzzle devices and suppressors for enhanced recoil control and style.

This product is backed by the quality and performance of True Precision's U.S.-made components, trusted by shooters who expect the best from their EDC gear.

💬 Frequently Asked Questions (FAQ)

Q: Will this barrel fit my P365 SAS or P365X?
A: Yes, this barrel is compatible with the Sig P365, P365 SAS, and P365X models with a 3.1” slide.

Q: Is this barrel ready for suppressor use?
A: Absolutely. The 1/2x28 threads make it compatible with standard 9mm suppressors and compensators.

Q: Does the Black Nitride finish really make a difference?
A: Yes. Black Nitride improves corrosion resistance, reduces fouling, and provides a smooth, long-lasting finish that’s easy to clean.

Q: Is this better than the stock P365 barrel?
A: It’s not just different—it’s better. True Precision barrels offer tighter tolerances, better materials, and improved performance over OEM barrels.

Q: Will I need a gunsmith to install it?
A: Nope. This is a drop-in barrel—installation is as easy as field stripping your pistol.