True Precision 9mm Barrel for Sig Sauer P365XL — 3.70", 416R Stainless, Black Finish

Model: TPP365XLBXBL • UPC: 719104537861 • Caliber: 9mm Luger (9x19) • Length: 3.70" • Material: Match-grade 416R Stainless Steel • Fit: Sig Sauer P365XL (drop-in) • Finish: Black, wear-resistant coating over 416R stainless

Give your P365XL a precision edge with the True Precision 3.70" 9mm barrel—engineered from 416R stainless steel for accuracy and finished in a durable black, low-glare coating for carry-ready corrosion resistance. This drop-in replacement improves lockup consistency, protects rifling with a precision crown, and delivers smooth, reliable feeding with common range and defensive loads. Whether you’re carrying daily, shooting classes, or chasing tighter groups, this P365XL barrel is a premium, no-gunsmithing upgrade.

Why Upgrade to a True Precision Barrel

• Match-Grade 416R Stainless: Barrel-grade steel chosen for uniformity, heat stability, and long-term accuracy retention.

• Black, Wear-Resistant Finish: Low-glare protective coating over stainless helps fight corrosion, holster wear, and humidity from everyday carry.

• True Drop-In Fit: Dimensioned for Sig Sauer P365XL slides for easy installation in minutes—no gunsmithing typically required.*

• Enhanced Lockup Geometry: Carefully held hood and lug tolerances promote repeatable lockup and more consistent point of impact.

• Optimized Chamber & Ramp: Designed for smooth cycling with quality 9mm ammunition (FMJ and many JHP profiles).**

• Precision Target Crown: Protects the muzzle and supports downrange consistency.

*Manufacturing tolerances vary—always perform proper safety and function checks.
**Always verify reliability with your specific ammunition before carry.

Key Features & Specs

• Manufacturer: True Precision, Inc.

• Platform Compatibility: Sig Sauer P365XL (3.70" slide length)

• Caliber: 9mm Luger (9x19)

• Overall Length: 3.70 inches

• Material: 416R stainless steel, heat treated

• Rifling: Match-grade rifling optimized for common 9mm bullet weights

• Crown: Precision target crown

• Finish: Black, wear-resistant coating over 416R stainless

• Installation: Drop-in (user installable)

• Model: TPP365XLBXBL • UPC: 719104537861

Note: True Precision barrels are offered in multiple finishes across the lineup. This listing is the black-finished, non-threaded 3.70" P365XL barrel unless your retailer specifies otherwise.

Real-World Benefits

• Tighter Groups, Greater Confidence: Improved lockup and barrel quality can help reduce vertical stringing and shrink 15–25+ yard groups.

• Carry-Grade Reliability: Refined chamber geometry supports smooth feeding and extraction—essential for EDC once function-tested.

• Durable Everyday Finish: The black coating resists sweat, salt, and holster abrasion while keeping reflections low.

• Easy to Install: Drop in, reassemble, and hit the range—keep your OEM barrel as a spare.

Ideal Use Cases

• Everyday Concealed Carry: Accuracy and durability in a compact, optic-friendly platform.

• Training & High Round-Count Classes: Heat-resistant steel and smooth cycling for long practice days.

• Performance/Competition Practice: Consistent POI for faster sight confirmation and transitions.

Installation & Break-In (Quick Guide)

1. Unload & Verify Clear.

2. Field Strip: Remove the slide, recoil assembly, and factory barrel.

3. Install: Insert the True Precision P365XL barrel and reassemble.

4. Function Check: Hand cycle; confirm lockup and slide movement.

5. Range Test: Run multiple mags of your practice and carry ammo; confirm feed, lock-back, and ejection.

6. Confirm Zero: Re-zero optics/sights if needed.

Care & Maintenance

• Clean with quality 9mm tools and non-abrasive solvent; lightly oil exterior if stored long-term.

• Avoid harsh steel brushes; use nylon/bronze for regular fouling.

• Periodically inspect the crown and feed ramp; remove lint and carbon from daily carry.

Compatibility Notes

• P365XL Only: Sized for the XL slide; not intended for standard P365, X-Macro, or compensated variants.

• Ammunition: Use quality, SAAMI-spec 9mm. Always validate your chosen carry load for 100% reliability.

• Holsters: Non-threaded profile maintains fit with most P365XL holsters.

SEO Highlights (Copy & Paste)

• True Precision 9mm barrel for Sig P365XL, 3.70", 416R stainless, black finish

• Drop-in P365XL barrel with precision crown and enhanced lockup

• Smooth feeding, corrosion-resistant coating, match-grade rifling

• Model TPP365XLBXBL, UPC 719104537861

• Accuracy upgrade for concealed carry, training, and performance shooting

Frequently Asked Questions

Q: Is this barrel threaded or ported?
A: This listing specifies the non-threaded 3.70" P365XL barrel in black finish.

Q: Do I need a gunsmith to install it?
A: It’s designed as a drop-in. Perform thorough function checks; if fit seems unusually tight/loose, consult a qualified armorer.

Q: Will it fit a standard P365 or P365XL with a comp?
A: It’s dimensioned for the P365XL slide. Other variants/comped setups may differ—verify before purchase.

Q: What accuracy gain should I expect?
A: Results vary by shooter, ammo, and sights. Many users report more consistent POI and smaller groups thanks to improved lockup and crown quality.

Safety Reminder

Always follow firearm safety rules. Test any new barrel with your intended ammunition before relying on it for defensive carry. Ensure all parts are correctly installed and functioning.

Upgrade your micro-compact with precision steel and a duty-ready finish. The True Precision P365XL 3.70" 9mm Barrel — 416R Stainless, Black (TPP365XLBXBL, UPC 719104537861) delivers drop-in accuracy, reliable feeding, and everyday durability in one clean, optic-friendly package.

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