The True Precision Fuse Match Barrel for the SIG Sauer P365-FUSE in 9mm, 4.3 inches (brand part no. TPP365FBXTG) is a drop-in-ready upgrade machined from 416R stainless steel specifically for the 4.3-inch P365-FUSE model. True Precision builds its barrels around advanced cuts, chamfers, and an improved feed ramp designed to outperform the OEM barrel, delivering more consistent accuracy and reliable feeding across ammunition types, including defensive loads. It drops straight into a compatible P365-FUSE slide with no gunsmithing required. This barrel is sized specifically for the FUSE model and is not interchangeable with the shorter P365 or P365XL variants.

Key Specifications

• Chambered in 9mm Luger.
• Barrel length measures 4.3 inches, matching the SIG P365-FUSE slide.
• Rifling uses a 1:10-inch right-hand twist rate.
• Machined from 416R stainless steel.
• Built as a drop-in-ready upgrade requiring no gunsmithing.
• Features advanced cuts and chamfers designed to outperform the OEM barrel.
• Includes an improved feed ramp for more reliable feeding.
• Engineered for reliable feeding across ammunition types, including defensive loads.
• Sized specifically for the SIG P365-FUSE model.

Frequently Asked Questions

Will this barrel fit a standard P365 or P365XL? No, this length is sized specifically for the P365-FUSE; True Precision offers separate barrels for those models.

Is gunsmithing required to install it? No, it is a drop-in-ready barrel.

What ammunition does it feed reliably? All standard ammunition types, including defensive hollow-point loads, thanks to the improved feed ramp.

Buy the True Precision Fuse Match Barrel

Upgrade a SIG P365-FUSE with a drop-in barrel built to outperform the factory unit. Browse more True Precision parts in our handgun barrels selection and order direct from our Lubbock, Texas gun shop for fast shipping to your door.