SilencerCo Threaded Barrel — 9mm Luger, Fits SIG SAUER® P365XL, Black Nitride Stainless Steel, 1/2×28 Threads | Model AC5369 | UPC 816413028346

Give your everyday carry a precision upgrade and device-ready versatility. The SilencerCo® Threaded Barrel for SIG SAUER® P365XL is a stainless steel, black nitride–finished, drop-in barrel that delivers reliable lockup, enhanced wear resistance, and repeatable accuracy—now with industry-standard 1/2×28 muzzle threads for comps, thread protectors, and suppressor pistons/Nielsen devices (where legal). Purpose-built by one of the most trusted names in suppression and pistol barrels, the AC5369 helps your P365XL shoot flatter, stay cleaner, and run longer through high-round-count training.

Why Upgrade to the SilencerCo P365XL Threaded Barrel

• Drop-in fit for P365XL (9mm) — Precisely machined for the XL slide length to maintain reliable cycling and lockup.

• Stainless steel construction — Excellent strength and heat handling for durability across high round counts.

• Black nitride finish — Boosts surface hardness, corrosion resistance, and lubricity while keeping glare low.

• 1/2×28 threaded muzzle — The most common 9mm pitch; attach comps, thread protectors, or suppressor mounts with ease*.

• Thread protector included — Safeguards threads and crown during carry and range use.

• Match-grade potential — Consistent chamber and rifling geometry support tight groups with quality ammo.

*Always confirm device compatibility and local laws before use. For suppressors, verify alignment with a caliber-appropriate rod.

Performance You Can Feel

SilencerCo’s tight manufacturing tolerances support clean feeding, consistent ejection, and a repeatable point of impact across popular training and defensive loads. The slick nitride finish resists carbon and holster wear, wipes clean more easily, and pairs well with windowed or optic-cut slides. Add a compensator to reduce muzzle rise and speed up splits, or run a piston/Nielsen device with your 9mm suppressor for quieter, softer-shooting practice (where permitted).

Ideal Use Cases

• EDC refinement: Maintain reliability while gaining comp/suppressor compatibility.

• Training & competition: Smoother tracking and potential accuracy gains with premium ammo.

• Suppressed practice (where legal): Standard threads make swaps straightforward.

• Custom builds: Stealthy look and superior wear resistance for the long haul.

Compatibility & Fit

• Pistol: SIG SAUER® P365XL (9mm Luger)

• Tube length: XL-specific (longer than standard P365 barrel)

• Caliber: 9×19mm

• Thread pitch: 1/2×28 TPI

• Includes: Thread protector

Fit note: This barrel is designed for the P365XL slide length. It is typically not compatible with the shorter standard P365 slide.

Installation (General Guidance)

1. Unload and clear the pistol. Remove slide and recoil spring.

2. Drop in the SilencerCo AC5369 barrel; hand-cycle to confirm smooth lockup.

3. Install the thread protector or your chosen device; torque to manufacturer specs.

4. Function check and re-zero if you add or change muzzle devices.

Care & Maintenance

• Clean bore and chamber regularly; nitride aids carbon release.

• Lightly lube locking surfaces; avoid abrasive media on the finish.

• Inspect threads and devices for carbon buildup and proper torque after heat cycles.

• Use a bore alignment rod before any suppressed firing.

Specifications (At a Glance)

• Brand: SilencerCo®

• Product: Threaded Barrel

• Model / SKU: AC5369

• UPC: 816413028346

• Caliber: 9mm Luger (9×19)

• Fitment: SIG SAUER® P365XL

• Material: Stainless steel

• Finish: Black nitride

• Thread Pitch: 1/2×28 TPI

• Included: Thread protector

SEO-Friendly Highlights (Quick Scan)

• SilencerCo P365XL threaded barrel (9mm), black nitride stainless

• 1/2×28 threads with thread protector included

• Drop-in fit, match-grade potential, comp/suppressor ready

• AC5369 | UPC 816413028346

The Bottom Line

If you want a tough, accurate, and device-ready upgrade for your SIG P365XL, the SilencerCo AC5369 is a top-tier choice. With stainless steel construction, a durable black nitride finish, and 1/2×28 threads, it brings reliability and versatility to your carry gun—without complicating your setup.

The End