Killer Innovations Velocity Threaded Barrel for SIG P365XL | MDC Gray
The Killer Innovations Velocity Threaded Barrel for SIG P365XL in MDC Gray offers a modern, neutral alternative to traditional black or high-contrast Gold barrels. Designed for SIG P365XL and P365 XMacro configurations, this 416R stainless steel barrel combines a subdued gray finish with 1/2×28 threads, single-point cut rifling, and Killer Innovations’ S.P.T. manufacturing process.
MDC Gray is the defining visual feature of this configuration. It creates a clean intermediate tone that works particularly well with black, gray, stainless, and two-tone P365 builds, giving the barrel a custom appearance without the brightness of Gold TiN.
The barrel is manufactured using Killer Innovations’ Single Process Technology to maintain close alignment between the bore, rifling, and chamber. Single-point cut rifling forms each groove with the same cutting tool, while a 1:10 twist rate and 11-degree target crown complete the precision-machined design.
At approximately 4.37 inches overall without the thread protector, this XL threaded configuration provides standard 1/2×28 muzzle threads and weighs approximately 2.62 ounces. A Gen 2 Thread Protector and high-temperature rubber O-ring are included with the barrel.
Key Features
- MDC Gray threaded barrel for SIG P365XL and P365 XMacro
- 416R stainless steel construction
- MDC Gray finish
- Chambered in 9mm Luger
- 1/2×28 muzzle threads
- 1:10 twist rate
- Single-point cut rifling
- Killer Innovations Single Process Technology (S.P.T.)
- 11-degree target crown
- Approximately 4.37-inch OAL without thread protector
- Approximately 2.62-ounce weight without thread protector
- Gen 2 Thread Protector included
- High-temperature rubber O-ring included
MDC Gray Custom Finish
The MDC Gray finish gives this P365XL barrel a more distinctive appearance than conventional Black DLC while remaining more restrained than Gold TiN. That makes it especially useful for monochrome gray builds, two-tone pistols, and custom configurations where a neutral contrast is preferred.
1/2×28 Threaded P365XL Barrel
- Thread pitch: 1/2×28
- Overall length: approximately 4.37 inches without protector
- Locking ledge to thread shoulder: approximately 2.72 inches
- Barrel weight: approximately 2.62 ounces without protector
- Thread protector weight: approximately .16 ounce
Compatibility
- SIG P365XL
- SIG P365 XMacro
- Compatible XL-length P365 slide assemblies
- Compatible 1/2×28 9mm muzzle devices when proper clearance requirements are met
Product Information
| Compatibility | P365XL |
|---|---|
| Made in USA | Yes |
| Manufacturer | Killer Innovations |
| Caliber | 9mm |
| Color | Grey |
| Twist Rate | 1:10 |
| Platform | SIG |
| Muzzle Thread | 1/2×28 |
| Material | 416R Stainless Steel |
| Finish | Molecular Dense Coating |
| Features | Non-Threaded |















