
Availability: In Stock
Current Stock: Out of stock
The True Precision 9mm Copper Barrel for Sig P365 is a match-grade drop-in replacement barrel built for shooters who demand reliable feeding and consistent accuracy from their compact carry gun. Made in the USA from 416R stainless steel billet, this barrel improves upon factory geometry with a widened feed ramp designed to cycle hollow points and defensive ammunition more reliably than OEM alternatives. Whether you're running drills at the range or trusting your P365 for personal defense, a precision barrel upgrade can tighten your groups and eliminate feeding hiccups that come from compromised ramp angles.
The 11-degree target crown on this barrel promotes bullet stability and shot-to-shot consistency, while the 1:10 left-hand twist rifling is optimized for 9mm Luger. A match-grade barrel is one of the most cost-effective upgrades for a compact pistol because it directly improves accuracy without requiring gunsmithing—it simply drops in. If you've run factory barrels and noticed occasional failures to feed with quality self-defense loads, a billet upgrade like this one addresses the root cause: feed ramp design.
True Precision has built a reputation among competitive shooters and defensive-minded gun owners for taking OEM geometry to the next level. This barrel reflects that focus: tighter tolerances, premium materials, and attention to the details that matter in real-world use. Drop-in barrels for the P365 are popular upgrades because the platform deserves the best ammunition reliability you can get from such a compact frame.
| Caliber | 9mm Luger |
| Material | 416R Stainless Steel Billet |
| Twist Rate | 1:10 (Left Hand) |
| Crown | 11-Degree Target Crown |
| Platform | Sig P365 |
| Model Number | TP-P365B-XS |
This barrel is designed as a drop-in replacement for the Sig P365. Verify your specific model against the manufacturer compatibility before ordering if you own a variant like the P365-XL.
Yes. The widened feed ramp geometry is specifically engineered to provide more reliable feeding of hollow point and defensive ammunition compared to factory OEM barrels, which often have narrower ramps that can cause occasional feeding issues with certain bullet shapes.
The match-grade construction, target crown, and precision billet manufacturing are designed to improve shot-to-shot consistency and accuracy. This makes it suitable for both defensive practice and range work where tighter groups matter.
Match-grade barrels are machined to tighter tolerances than factory barrels and use premium materials. This translates to better accuracy, more consistent performance, and improved ammunition compatibility—especially important in a compact gun like the P365 where reliability and precision are critical.


SKU: 121687049 • Width: 2.55in • Height: 1.1in • Depth: 6.5in • Weight: 0.19oz





Availability: In Stock
Current Stock: Out of stock
The True Precision 9mm Copper Barrel for Sig P365 is a match-grade drop-in replacement barrel built for shooters who demand reliable feeding and consistent accuracy from their compact carry gun. Made in the USA from 416R stainless steel billet, this barrel improves upon factory geometry with a widened feed ramp designed to cycle hollow points and defensive ammunition more reliably than OEM alternatives. Whether you're running drills at the range or trusting your P365 for personal defense, a precision barrel upgrade can tighten your groups and eliminate feeding hiccups that come from compromised ramp angles.
The 11-degree target crown on this barrel promotes bullet stability and shot-to-shot consistency, while the 1:10 left-hand twist rifling is optimized for 9mm Luger. A match-grade barrel is one of the most cost-effective upgrades for a compact pistol because it directly improves accuracy without requiring gunsmithing—it simply drops in. If you've run factory barrels and noticed occasional failures to feed with quality self-defense loads, a billet upgrade like this one addresses the root cause: feed ramp design.
True Precision has built a reputation among competitive shooters and defensive-minded gun owners for taking OEM geometry to the next level. This barrel reflects that focus: tighter tolerances, premium materials, and attention to the details that matter in real-world use. Drop-in barrels for the P365 are popular upgrades because the platform deserves the best ammunition reliability you can get from such a compact frame.
| Caliber | 9mm Luger |
| Material | 416R Stainless Steel Billet |
| Twist Rate | 1:10 (Left Hand) |
| Crown | 11-Degree Target Crown |
| Platform | Sig P365 |
| Model Number | TP-P365B-XS |
This barrel is designed as a drop-in replacement for the Sig P365. Verify your specific model against the manufacturer compatibility before ordering if you own a variant like the P365-XL.
Yes. The widened feed ramp geometry is specifically engineered to provide more reliable feeding of hollow point and defensive ammunition compared to factory OEM barrels, which often have narrower ramps that can cause occasional feeding issues with certain bullet shapes.
The match-grade construction, target crown, and precision billet manufacturing are designed to improve shot-to-shot consistency and accuracy. This makes it suitable for both defensive practice and range work where tighter groups matter.
Match-grade barrels are machined to tighter tolerances than factory barrels and use premium materials. This translates to better accuracy, more consistent performance, and improved ammunition compatibility—especially important in a compact gun like the P365 where reliability and precision are critical.
SKU: 121687049 • Width: 2.55in • Height: 1.1in • Depth: 6.5in • Weight: 0.19oz

