The Faxon Duty Series Threaded Barrel for SIG® P365 delivers rugged reliability and suppressor-ready versatility in an ultra-compact drop-in upgrade. Crafted from stress-relieved 4150 CMV steel with a full black nitride finish inside and out for maximum corrosion resistance, wear protection, and lubricity, this threaded barrel is built for hard-use concealed carry, duty, or training where dependability and accessory compatibility are essential.

Key Benefits

• 4150 CMV Steel: Stress-relieved for maximum durability, longevity, and accuracy.
• 9mm SAAMI Chambers: Superior accuracy with complete SAAMI compatibility & boring reliability.
• Tighter Tolerances: Drop-in, yet better fitment and lock-up.
• Conventional Rifling: Fully compatible with cast bullets.
• 11 Degree Target Crown: Consistent bullet release for enhanced precision.
• Black Nitride Finish: Exceptional lubricity, wear resistance, and corrosion protection inside and out.
• Threaded Muzzle: Ready for suppressors, compensators, or thread protectors.
• Made in USA: Precision-machined in Faxon's Greater Cincinnati, Ohio facility with ISO:9001 and AS:9100 certifications. Backed by Faxon's Lifetime Guarantee.

Specifications

Why Choose the Duty Series

The Duty Series is engineered for hard-use reliability with tough 4150 CMV steel and a complete salt bath nitride treatment for maximum corrosion and wear resistance. The threaded muzzle adds suppressor or compensator capability while maintaining the ultra-compact profile needed for concealed carry on your P365, providing enhanced performance and longevity for everyday defensive or range applications.

Installation & Compatibility

• Drop-in fit for factory-spec SIG® P365 slides — no gunsmithing required.
• Note: Due to the slim nature of the slide, you may need to remove the O-Ring from the barrel to install.
• 1/2-28 threads accommodate common 9mm compensators, suppressors, and adapters.
• Conventional rifling supports cast lead and jacketed bullets.
• Tighter-than-OEM tolerances for improved lockup and accuracy.

Frequently Asked Questions

Overview: Duty Series Threaded Barrel for SIG® P365

The Faxon Duty Series Threaded Barrel for SIG® P365 in Nitride provides rugged, duty-ready performance with suppressor-ready capability in an ultra-compact package. Machined from stress-relieved 4150 CMV steel with conventional 1:10 twist rifling and tighter tolerances, this barrel offers enhanced reliability and accuracy in a drop-in package.

Fully nitride-treated for superior wear and corrosion resistance, threaded for suppressors or compensators, and drop-in ready for P365 slides (with O-Ring note), this barrel is perfect for everyday carry, range duty, or defensive use. Backed by Faxon's Lifetime Guarantee and precision-machined in Greater Cincinnati, Ohio.