Ballistic Advantage Threaded Barrel w/ Bomber Fluting for SIG P365XL / XMacro | Black | LCI

Ballistic Advantage Threaded Barrel w/ Bomber Fluting for SIG P365XL / XMacro | Black | LCI

The Ballistic Advantage Threaded Barrel with Bomber Fluting for SIG P365XL and P365 XMacro is built for users who want an aggressive machined barrel profile without adding a bright finish. This LCI-compatible configuration pairs angular Bomber fluting with a durable Black QPQ treatment and standard 1/2×28 muzzle threads.

Bomber fluting gives this barrel a sharper, more mechanical appearance than Ballistic Advantage’s spiral-fluted or smooth-profile designs. The angular machining is especially noticeable through compatible slide windows while the Black QPQ finish keeps the overall build subdued and cohesive.

The barrel is machined from hardened 416R stainless steel and undergoes honing, lapping, and tumbling to produce a smooth bore surface. A 1:10 twist rate and SAAMI-spec 9mm chamber provide the internal geometry, while Ballistic Advantage specifies no traditional break-in period for the finished barrel.

The Black QPQ treatment improves surface hardness and wear resistance while providing corrosion protection and a low-profile appearance. This makes the Bomber-fluted Black configuration particularly well suited to all-black, duty-inspired, or understated P365XL and XMacro builds where machining detail is desired without a high-contrast coating.

Key Features

• Bomber-fluted threaded barrel for SIG P365XL and P365 XMacro
• Designed for compatible slides using a Loaded Chamber Indicator
• Angular Bomber fluting
• Black QPQ finish
• Hardened 416R stainless steel construction
• Chambered in 9mm
• 1/2×28 muzzle threads
• 1:10 twist rate
• Approximately 4.2-inch threaded overall length
• SAAMI-spec chamber
• Honed, lapped, and tumbled bore
• No manufacturer-prescribed break-in period

Bomber-Fluted P365XL Barrel

The Bomber profile uses angular exterior machining that gives the barrel a more aggressive appearance than Ballistic Advantage’s spiral-fluted or non-fluted alternatives. It is an especially strong match for slides with windows or relief cuts that expose the barrel during cycling.

Black QPQ Surface Treatment

The QPQ Black treatment provides a hard, wear-resistant exterior while maintaining a dark, understated appearance. It is the natural choice for users who want visible barrel machining without the brighter contrast of Copper or other PVD finishes.

LCI Threaded Configuration

• LCI-compatible barrel configuration
• Thread pitch: 1/2×28
• Fluting: Bomber
• Finish: Black QPQ
• Designed for compatible P365XL and XMacro slides using a Loaded Chamber Indicator
• Verify slide, LCI, and muzzle-device compatibility before installation

Compatibility

• SIG P365XL
• SIG P365 XMacro
• SIG P365 XMacro TACOPS
• Compatible XL-length slide assemblies using a Loaded Chamber Indicator
• Compatible 1/2×28 9mm muzzle devices when proper clearance requirements are met