True Precision 9MM Black DLC Threaded Barrel for Sig P365 - TP-P365B-XTBC

The True Precision 9MM Black DLC Threaded Barrel for Sig P365 transforms one of the most popular compact carry pistols into a seriously accurate shooter. This match-grade replacement barrel is precision-engineered to unlock the P365's accuracy potential while adding the versatility of a threaded muzzle for suppressors or compensators. If you're running a P365 for self-defense, competition, or range work, upgrading to a match-grade barrel is one of the highest-return modifications you can make.

Built from certified U.S.-sourced 416R stainless steel, this barrel is machined to exacting standards and features precisely broach-cut 6-groove rifling designed for consistency and reliability. The 1-10" twist rate stabilizes a wide range of 9mm Luger bullet weights, and the barrel is safe for economical cast lead ammunition—a real plus if you shoot a lot. The high-polish SAAMI-spec chamber and polished feed ramp ensure smooth feeding and optimal accuracy. Heat-hardened to Rc 42-44, this barrel is built to last thousands of rounds without degradation. Drop-in installation means no gunsmithing required; simply swap it in and go.

The Black DLC finish delivers a professional look while offering excellent corrosion resistance—ideal for everyday carry or duty use. Shallow flutes on the exterior provide visual appeal without compromising strength. Your barrel ships with a protective muzzle cap fitted with a Viton heat-resistant O-ring, ready to protect your threads when you're not running a suppressor or comp.

Key Features

• Match-grade precision for P365 accuracy upgrade
• 1/2"-28 tpi threaded muzzle for suppressors and compensators
• 416R stainless steel, U.S.-sourced and certified
• Broach-cut 6-groove rifling for consistency and reliability
• 1-10" twist stabilizes standard and heavy 9mm loads
• High-polish SAAMI-spec chamber and polished feed ramp
• Safe for cast lead bullet ammunition
• Black DLC corrosion-resistant finish
• Heat-hardened to Rc 42-44 for durability
• Drop-in installation; no fitting needed
• Includes protective muzzle cap with Viton O-ring

Specifications

Frequently Asked Questions

Will this barrel fit my Sig P365?

Yes, this barrel is designed as a direct drop-in replacement for the standard Sig P365. Installation requires no fitting or gunsmithing—simply swap it in place of the factory barrel.

Can I shoot cast lead bullets through this barrel?

Absolutely. The True Precision P365 barrel is designed and proven safe for cast lead ammunition, making it ideal for low-cost practice and high-volume shooting.

What suppressor or compensator threads does this barrel use?

The barrel features 1/2"-28 tpi threads at the muzzle, the standard for 9mm suppressors and compensators. A protective muzzle cap with Viton O-ring is included to protect the threads when not in use.

What's the twist rate, and what bullet weights will it stabilize?

The barrel has a 1-10" twist rate, which is versatile enough to stabilize a wide range of standard and heavier 9mm Luger bullet weights reliably.