Ballistic Advantage Threaded Barrel w/ Spiral Fluting for SIG P365XL / XMacro | Black | No LCI

Ballistic Advantage Threaded Barrel w/ Spiral Fluting for SIG P365XL / XMacro | Black | No LCI

The Ballistic Advantage Threaded Barrel with Spiral Fluting for SIG P365XL and P365 XMacro is built for shooters who want muzzle-device compatibility without a bright or high-contrast finish. Its Black QPQ treatment provides a durable, low-profile exterior, while the spiral-fluted profile adds custom machining detail that remains visible through compatible slide windows and relief cuts.

This barrel is produced in a No LCI configuration and does not include a loaded chamber indicator cut. It is intended for compatible SIG P365XL, P365 XMacro, and P365 XMacro TACOPS slide assemblies designed to use a non-LCI barrel.

The 4.2-inch threaded overall length positions the muzzle beyond the slide and provides standard 1/2×28 threads for compatible 9mm suppressors, compensators, and other muzzle devices. This makes the barrel a versatile option for suppressed builds, compensator-equipped carry pistols, and configurations where future accessory flexibility is important.

Machined from hardened 416R stainless steel, the barrel provides the strength, toughness, and corrosion resistance expected from Ballistic Advantage’s Premium Series. The Black Quench Polish Quench finish increases surface hardness and resistance to wear while helping protect the barrel from moisture and environmental exposure.

Ballistic Advantage hones, laps, and tumbles each bore to eliminate manufacturing imperfections and produce a smooth internal finish. The chamber meets SAAMI specifications, and bore deviation is held to less than .0001 inch to support consistent lockup, dependable function, and repeatable accuracy without a manufacturer-prescribed break-in period.

Features

• Designed for compatible SIG P365XL and P365 XMacro configurations
• No loaded chamber indicator cut
• For use with compatible non-LCI slide assemblies
• Chambered in 9mm Luger
• Premium Series threaded pistol barrel
• Hardened 416R stainless steel construction
• Black Quench Polish Quench finish
• Spiral-fluted exterior profile
• 4.2-inch threaded overall length
• 1/2×28 muzzle threads
• 1:10 right-hand twist rate
• Chamber manufactured to SAAMI specifications
• Honed, lapped, and tumbled bore
• Held to less than .0001-inch bore deviation
• No manufacturer-prescribed break-in period

Compatibility

• SIG P365XL with a compatible non-LCI slide assembly
• SIG P365 XMacro with a compatible non-LCI slide assembly
• SIG P365 XMacro TACOPS with a compatible non-LCI slide assembly
• Compatible aftermarket slides designed around the P365XL or XMacro barrel configuration
• Compatible 9mm suppressors, compensators, and muzzle devices using 1/2×28 threads
• Not intended for standard-length P365 or P365X slides
• Not intended for slide assemblies requiring an LCI barrel

Important Fitment Information

• This barrel does not include a loaded chamber indicator cut
• Confirm that the slide and related components support a No LCI barrel
• Verify that the slide is designed for a 4.2-inch threaded P365XL or XMacro barrel
• Confirm suppressor, compensator, and muzzle-device compatibility before use
• Ballistic Advantage tests its barrels in complete factory firearms
• Aftermarket slide and component tolerances may affect fitment and performance
• Confirm proper barrel lockup and safe operation before live fire