Sig Sauer P365XL 9mm Luger 3.70" Replacement Barrel - Black Nitron - LCI

The Sig Sauer P365XL Factory Replacement Barrel is a precision-made OEM drop-in barrel engineered specifically for the Sig Sauer P365XL micro-compact striker-fired pistol. Chambered in 9mm Luger, this 3.70" barrel is machined from steel and finished in Sig Sauer's signature black Nitron for excellent corrosion resistance and long-term durability.

This replacement barrel serves as a direct factory swap for the original P365XL barrel, making it ideal for refreshing a worn barrel, replacing a damaged unit, or maintaining a carry pistol at peak performance. It features an integrated Loaded Chamber Indicator (LCI) witness hole on top of the chamber that provides both visual and tactile confirmation of a chambered cartridge - a critical safety feature carried over from Sig Sauer's factory specification.

The barrel ships with no sights pre-installed and is non-threaded, matching the original factory P365XL barrel configuration. Built to Sig Sauer's factory tolerances, this OEM replacement barrel delivers the same reliable fit, finish, and function as the component that originally shipped with the pistol.