Zaffiri Precision Threaded Barrel for P365 | Spectrum

Zaffiri Precision Threaded Barrel for P365 | Spectrum

The Zaffiri Precision Threaded Barrel for P365 gives shooters a premium aftermarket upgrade for adding threaded capability to a Sig Sauer P365-compatible pistol. Built for customers who want more flexibility than a factory-style barrel, this drop-in replacement is a strong option for compact custom builds, slide assembly projects, and upgraded P365 pistols configured for properly matched muzzle devices.

Zaffiri Precision machines this barrel from 416R stainless steel at its facility in Largo, Florida. The extended threaded muzzle is designed to support compatible 1/2×28 TPI compensators, suppressors, and other correctly fitted accessories, while the included thread protector helps protect the muzzle threads when no device is installed. For builders working with a compact pistol platform, that combination adds versatility without moving away from a clean, purpose-built setup.

This barrel uses conventional rifling for broad ammunition compatibility, making it suitable for common lead, plated, and jacketed bullets. Precision machining, polished internal surfaces, and drop-in fitment help support dependable operation with standard components. The barrel also includes a Loaded Chamber Indicator notch, an important compatibility detail customers should confirm against their specific firearm and applicable state requirements.

For shoppers comparing aftermarket P365 threaded barrels, this Zaffiri Precision model delivers the features buyers typically look for at the top of the category: U.S. manufacturing, 416R stainless steel construction, thread protector included, LCI notch, conventional rifling, and compatibility with both OEM and aftermarket component setups. It is a practical choice for anyone building a more capable P365-compatible pistol while keeping fitment and installation straightforward.

This Zaffiri Precision barrel is also listed for compatibility with Zaffiri Precision slide models including ZPS.2, ZPS.3, Z Series, and IBS configurations. Whether the goal is a custom compact range pistol, a completed aftermarket upper, or a replacement barrel with added muzzle-device capability, this threaded barrel gives the P365 platform a well-machined upgrade from a trusted aftermarket manufacturer.

Features

• Aftermarket threaded barrel for Sig Sauer P365-compatible pistols
• Drop-in fit
• Thread protector included
• Machined from 416R stainless steel
• Manufactured in-house by Zaffiri Precision in Largo, Florida
• Designed for consistent fitment with OEM and aftermarket components
• Conventional rifling compatible with a wide range of ammunition types
• Polished chamber and bore
• 6-groove rifling
• 1:10 twist rate
• Loaded Chamber Indicator notch
• Compatible with Zaffiri Precision ZPS.2, ZPS.3, Z Series, and IBS slide models
• Approximate barrel length: 3.77 inches
• Approximate weight: 6 oz
• Made in the USA

Compatibility Note: This is an aftermarket component designed for compatibility with Sig Sauer P365 pistols. It is not manufactured by, endorsed by, or affiliated with Sig Sauer.