True Precision 9mm Barrel for Sig Sauer P365 — 3.10", 416R Stainless, Black Finish
Model: TPP365BXBL • UPC: 719104536178 • Caliber: 9mm Luger (9x19) • Length: 3.10" • Material: Match-Grade 416R Stainless Steel • Fit: Sig Sauer P365 (drop-in) • Finish: Black, wear-resistant coating over stainless
Give your ultra-compact carry gun a precision upgrade that looks as good as it shoots. The True Precision 3.10" 9mm barrel for Sig P365 is CNC-machined from 416R stainless steel—a premium, barrel-grade alloy known for excellent accuracy, heat stability, and corrosion resistance—then finished in a durable black, low-glare coating ideal for daily concealed carry. Designed as a drop-in replacement, it enhances lockup consistency, protects rifling with a precision target crown, and delivers smooth, reliable feeding with common range and defensive loads.
Why Choose This True Precision P365 Barrel
416R Stainless Accuracy: Barrel steel of choice for match-grade pistols—uniform microstructure and heat resistance help maintain tight groups over high round counts.
Black, Duty-Ready Finish: Wear-resistant, low-sheen coating over stainless resists sweat, holster abrasion, and humidity while keeping reflections to a minimum.
True Drop-In Fitment: Dimensioned specifically for the Sig P365 slide so most users can install in minutes—no gunsmithing typically required.*
Enhanced Lockup Geometry: Carefully controlled hood and lug tolerances support repeatable lockup and a more consistent point of impact.
Optimized Chamber & Feed Ramp: Designed for smooth cycling with quality 9mm ammunition (FMJ and many JHP profiles).**
Precision Target Crown: Protects the muzzle and supports downrange consistency and longevity.
*Manufacturing variances exist—always perform safety and function checks after installation.
**Always verify reliability with your specific carry ammunition before EDC.
Key Features & Specs
Manufacturer: True Precision, Inc.
Platform Compatibility: Sig Sauer P365 (standard 3.10" slide)
Caliber: 9mm Luger (9x19)
Overall Length: 3.10 inches
Material: 416R stainless steel, heat-treated
Rifling: Match-grade rifling optimized for common 9mm bullet weights
Crown: Precision target crown for protected rifling
Finish: Black, wear-resistant coating over stainless
Installation: Drop-in (user installable; no fitting typically required)
Model: TPP365BXBL • UPC: 719104536178
Note: Images across the True Precision lineup may show threaded or alternate-finish barrels. This listing is for a non-threaded, black-finished 3.10" P365 barrel unless your retailer specifies otherwise.
Real-World Benefits
Tighter Groups, Better Confidence: Improved lockup and match-quality rifling can help shrink 15–25+ yard groups and stabilize point of impact.
EDC-Ready Reliability: Refined chamber geometry supports smooth feeding and positive extraction when paired with quality ammunition (after function testing).
Daily-Duty Durability: Stainless core + protective black coating stand up to sweat, salt, and constant holster cycles.
Easy Upgrade Path: Keep your OEM barrel as a spare—drop in the True Precision, reassemble, and hit the range.
Ideal Use Cases
Everyday Concealed Carry: Enhanced consistency and corrosion resistance in a micro footprint.
Training & High Round Count: Heat-stable steel and smooth cycling for long practice days or classes.
Performance Practice: More repeatable POI for faster confirmation of sights or optics and cleaner transitions.
Installation & Break-In (Quick Guide)
Unload & Verify Clear.
Field Strip: Remove slide, recoil assembly, and factory barrel.
Install: Drop in the True Precision P365 barrel and reassemble.
Function Check: Hand-cycle to confirm lockup, hood fit, and ejection path.
Range Test: Run multiple mags of both practice and carry ammo; verify feed, lock-back, and ejection.
Confirm Zero: Re-check POI if you’ve changed ammo or sights/optics.
Care & Maintenance
Clean with quality 9mm tools and non-abrasive solvent; apply a light protectant if storing long term.
Use nylon/bronze brushes—avoid harsh steel on the bore.
Inspect the crown and feed ramp periodically; remove lint and carbon that accumulate with daily carry.
Compatibility Notes
P365 Only: Sized for the standard 3.10" P365 slide. Not intended for P365XL (3.70"), X-Macro, or compensated variants.
Ammunition: Use quality, SAAMI-spec 9mm. Always validate your chosen defensive load for 100% reliability.
Holster Fit: Non-threaded, standard-profile muzzle maintains compatibility with most P365 holsters.
SEO Highlights (Copy & Paste)
True Precision 9mm barrel for Sig P365, 3.10", 416R stainless, black finish
Drop-in match-grade P365 barrel with target crown and enhanced lockup
Smooth feeding, corrosion-resistant coating, accuracy upgrade for EDC
Model TPP365BXBL, UPC 719104536178
Ideal for concealed carry, training, and performance practice
Frequently Asked Questions
Q: Is the barrel threaded or ported?
A: This SKU is a non-threaded, non-ported 3.10" P365 barrel with a black finish.
Q: Do I need a gunsmith to install it?
A: It’s intended as a drop-in part. Perform thorough function checks; if fit feels unusually tight/loose or wear appears abnormal, consult a qualified armorer.
Q: Will this fit a P365XL or X-Macro?
A: No. It’s dimensioned for the standard P365 only. Choose the appropriate True Precision barrel for other variants.
Q: What accuracy improvement should I expect?
A: Results vary by shooter, ammo, and sights. Many users report smaller groups and more consistent POI due to improved lockup and a precision crown.
Safety Reminder
Always follow the four rules of firearm safety. Test any new barrel thoroughly with your intended ammunition before relying on it for defensive carry. Ensure all parts are correctly installed and functioning.
Upgrade your everyday carry with match-grade steel and a rugged, carry-ready finish. The True Precision P365 3.10" 416R Stainless 9mm Barrel — Black (TPP365BXBL, UPC 719104536178) delivers drop-in accuracy, reliable feeding, and long-term durability in a sleek, low-glare package.
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