This True Precision barrel (MPN TPP365FBXBL) is a drop-in replacement barrel designed specifically for the 4.3-inch Sig Sauer P365-FUSE.

Key Specifications

• Drop-in ready replacement barrel for the Sig Sauer P365-FUSE
• Designed specifically for the 4.3-inch P365-FUSE 9mm model
• Chambered in 9mm Luger
• 4.30-inch barrel length
• 1:10in RH twist rate
• Advanced cuts, chamfers, and feed ramp geometry engineered to outperform OEM standards
• Built to ensure reliable feeding across a wide range of ammunition designs
• Black Nitride finish over stainless steel
• Machined from 416R stainless steel for corrosion resistance and long-term durability

Frequently Asked Questions

What pistol does this barrel fit?
The Sig Sauer P365-FUSE (4.3-inch model).

What’s the twist rate?
1:10in RH.

What finish is this version?
Black Nitride over stainless steel.

Buy the True Precision P365-FUSE Barrel

Upgrade feeding and accuracy on your P365-FUSE with this barrel from True Precision. Order from a Lubbock, TX gun shop in our handgun barrel lineup.