This True Precision barrel (brand part number TPP365FBXTBL) is a drop-in match-grade upgrade for the Sig Sauer P365-FUSE, machined from 416R stainless steel and cut with True Precision’s proprietary broach-cut rifling for accuracy that outperforms the factory barrel. It’s designed for the 4.3-inch P365-FUSE 9mm models, with advanced cuts, chamfers, and an improved feed ramp geometry built in to ensure reliable feeding across ammunition types, including defensive ammo. True Precision built this barrel to be the definitive P365-FUSE upgrade, dropping in without gunsmithing.

Key Specifications

• Chambered in 9mm Luger.
• Fits the Sig Sauer P365-FUSE.
• Measures 4.3 inches in length.
• Machined from 416R stainless steel.
• Cut with True Precision’s proprietary broach-cut rifling.
• Rifled with a 1:10-inch RH twist.
• Features advanced cuts, chamfers, and an improved feed ramp for reliable feeding, including with defensive ammunition.
• Built as a drop-in, factory-replacement fit.
• Ships without sights.

Frequently Asked Questions

What model does this barrel fit? The Sig Sauer P365-FUSE 9mm.

Will it feed defensive ammo reliably? Yes, the feed ramp geometry is built to feed all ammunition types reliably, including defensive loads.

What’s it made from? 416R stainless steel with proprietary broach-cut rifling.

Buy the True Precision Sig P365-FUSE Match-Grade Barrel

Get match-grade accuracy and reliable feeding from a true drop-in P365-FUSE barrel. Order it from our True Precision lineup, part of our handgun barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.