Ballistic Advantage Threaded Barrel w/ Bomber Fluting for SIG P365XL / XMacro | Copper | No LCI
The Ballistic Advantage Threaded Barrel with Bomber Fluting for SIG P365XL and P365 XMacro brings 1/2×28 muzzle-device compatibility to the longer P365 slide platform. Its Copper PVD finish and aggressive Bomber-fluted exterior create a distinctive custom appearance, while the No LCI configuration is intended for compatible slide assemblies that do not require a loaded chamber indicator cut.
With a 4.2-inch threaded overall length, this barrel is sized for compatible P365XL, P365 XMacro, and P365 XMacro TACOPS configurations. The extended muzzle provides the clearance needed to attach compatible 9mm suppressors, compensators, and other devices using the common 1/2×28 thread pattern.
Ballistic Advantage machines the barrel from hardened 416R stainless steel, a material selected for strength, toughness, ductility, and corrosion resistance. The Copper Physical Vapor Deposition coating adds a durable protective surface while creating a high-contrast finish that remains visible through compatible slide windows and relief cuts.
Bomber fluting gives the exterior a more angular and pronounced profile than conventional spiral fluting. In addition to distinguishing the barrel visually, the machining complements custom P365XL and XMacro builds where the barrel is an intentional part of the overall design.
Each barrel is honed, lapped, and tumbled to remove manufacturing imperfections and produce a smooth bore that requires no manufacturer-prescribed break-in period. The chamber is manufactured to SAAMI specifications, and bore deviation is held to less than .0001 inch to support dependable lockup, reliable operation, and consistent accuracy.
Features
- Designed for compatible SIG P365XL and P365 XMacro configurations
- No loaded chamber indicator cut
- Chambered in 9mm Luger
- Premium Series threaded pistol barrel
- Hardened 416R stainless steel construction
- Copper Physical Vapor Deposition finish
- Distinctive Bomber-fluted exterior
- 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 length
- 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 that require an LCI barrel
Important Fitment Information
- This barrel does not include a loaded chamber indicator cut
- Confirm the slide is designed for a 4.2-inch threaded P365XL or XMacro barrel
- Verify slide, barrel, and muzzle-device compatibility before installation
- 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
Product Information
| Weight | 4.2 oz |
|---|---|
| Dimensions | 7 × 2 × 1 in |
| Compatibility | P365XL |
| Made in USA | Yes |
| Manufacturer | Ballistic Advantage |
| Caliber | 9mm |
| Color | Black |
| Twist Rate | 1:10 |
| Platform | SIG |
| Muzzle Thread | 1/2×28 |
| Material | 416R Stainless Steel |
| Finish | PVD, QPQ Nitride |
| Features | Threaded, Fluted |









































































































































