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FAXON DUTY SERIES BARREL FOR P320 FULL SIZE 9MM
Faxon
$98.00
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Faxon
FAXON DUTY SERIES BARREL FOR P320 FULL SIZE 9MM
Faxon Duty Series Barrel for SIG® P320 Full Size 9mm Nitride
Faxon’s Duty Series pistol barrels for SIG® P320 are machined in-house from stress-relieved 4150 CMV steel. These barrels are then given a black Nitride or PVD coating to increase lubricity, barrel life, and resistance to surface wear. All barrels are conventionally rifled to allow a wider range of ammunition to be used, including cast lead. The barrels drop into factory-spec slides with no gunsmithing required. Better-than-factory tolerances ensure a consistent, tighter lockup than OEM.
The Faxon Duty Series Barrel for SIG® P320 Full Size delivers rugged, reliable performance in a full-size drop-in upgrade. Crafted from stress-relieved 4150 CMV steel with a full salt bath nitride finish inside and out for maximum corrosion resistance, wear protection, and lubricity, this barrel is engineered for hard-use duty, range, competition, or defensive applications where dependability is critical.
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.
- Salt Bath Nitride Finish: Exceptional lubricity, wear resistance, and corrosion protection inside and out.
- 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. This non-threaded barrel maintains the full-size profile while providing enhanced performance and longevity for defensive, duty, or range applications on your P320 Full Size.
Installation & Compatibility
- Drop-in fit for factory-spec SIG® P320 Full Size slides — no gunsmithing required.
- Conventional rifling supports cast lead and jacketed bullets.
- Tighter-than-OEM tolerances for improved lockup and accuracy.
- Note: Not compatible with X-Carry or X-Compact models, or slides with a Tactile Loaded Chamber Indicator (including the M18 variant slides).
Frequently Asked Questions
Is this barrel drop-in?
Yes — designed for direct replacement in factory SIG® P320 Full Size slides with no modifications needed.
What finish is applied?
Salt bath nitride inside and out for superior lubricity, wear resistance, and corrosion protection.
Is cast lead ammo safe?
Absolutely — conventional rifling allows safe use of cast lead bullets.
Overview: Duty Series Barrel for SIG® P320 Full Size
The Faxon Duty Series Barrel for SIG® P320 Full Size in Nitride provides rugged, duty-ready performance in a full-size 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, this non-threaded barrel is perfect for everyday carry, range duty, or defensive use on your P320 Full Size. Backed by Faxon's Lifetime Guarantee and precision-machined in Greater Cincinnati, Ohio.
- Caliber:
- 9mm
- Barrel Profile:
- Drop In, Duty Series
- Barrel Material:
- 4150 CMV
- Finish:
- Salt Bath Nitride
- Rifling Twist Rate:
- 1:10
- Muzzle Thread:
- N/A
- Handgun Type:
- SIG® P320 Full Size
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