Description
The True Precision threaded barrel is a direct-fit upgrade for the SIG P365 platform. It features 1/2×28 threads, allowing you to attach a suppressor or compensator for your carry or range setup. The barrel ships with a Viton high heat integral O-ring lock thread protector to keep threads safe during transport and storage.
Precision Machining and Match-Grade Construction
This barrel is manufactured in the USA from certified 416R match-grade stainless steel with proprietary broach-cut rifling. The design includes fully radiused and chamfered edges that improve fit over factory specifications. An enhanced feed ramp delivers reliable feeding with all ammunition types, including defensive loads, while the 1:10 LH twist rate is optimized for standard 9mm rounds.
Drop-in Installation and Compatibility
The barrel drops into the standard P365, P365 SAS, and P365X (3.1 inch models) just like the factory part. No gunsmithing is required for installation. The barrel measures 3.1 inches in length and maintains a SAAMI spec chamber for proper headspace and safety.
Built for Performance
True Precision engineered this barrel with quality-first design, combining precision tolerances with quality materials. The black nitride finish is durable and corrosion-resistant, making it suitable for everyday carry and frequent use at the range.
Key Specifications
- Manufacturer: True Precision
- Manufacturer Part Number: TP-P365B-XTBL
- UPC: 719104536260
- Caliber: 9mm
- Platform: SIG P365, P365 SAS, P365X (3.1 inch)
- Barrel Length: 3.1 inches
- Thread Pattern: 1/2×28
- Twist Rate: 1:10 LH
- Material: 416R Stainless Steel
- Finish: Black Nitride
- Chamber Spec: SAAMI
- Installation: Drop-in design
- Included Accessories: Viton integral O-ring lock thread protector
What’s Included
- True Precision SIG P365 threaded barrel
- Viton high heat integral O-ring lock thread protector
Frequently Asked Questions
Will this threaded barrel work with a suppressor?
Yes. The 1/2×28 threads are compatible with standard 9mm suppressors and compensators. The barrel ships with a thread protector for safe storage and transport. Some users report excellent function with suppressors, while individual results may vary depending on your specific firearm and ammunition combination.
What's the difference between this barrel and the factory SIG barrel?
True Precision barrels use match-grade 416R stainless steel with proprietary broach-cut rifling and an improved feed ramp design that outperforms factory specifications. The threads enable suppressor compatibility, and the design includes enhanced chamfers and radius cuts for better fit and reliability.
Is this a drop-in replacement?
Yes, it's designed as a drop-in replacement for the SIG P365 platform. No gunsmithing is required for installation. The barrel fits into the P365, P365 SAS, and P365X (3.1 inch models) just like a factory barrel.
How much longer is this barrel than the factory barrel?
The threaded barrel is approximately 0.75 inches longer overall than a standard factory P365 barrel due to the threaded muzzle extension. The actual chamber length remains 3.1 inches.







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