SIG P320 & P365/P365XL Spiral Fluted 9mm Barrel – Black Nitride, Choose Model

SIG Spiral Fluted Barrel: Specs

Upgrade your SIG with a spiral fluted 9mm barrel available for P320 Compact, P320 Full Size, and P365 models. Machined from heat-treated 416R stainless steel, this performance barrel features precision spiral fluting, a black nitride finish, flush-cut 11-degree target crown, SAAMI-spec chamber, and 1:10 right-hand twist. The distinctive fluted design combines a custom appearance with durable construction. 100% Made in USA. Select your compatible SIG model before ordering.

Barrel Specs

• Choose Model: SIG P320 Compact, P320 Full Size, or P365
• Caliber: 9mm
• 416R stainless steel
• Heat treated 42–44 RW
• Precision spiral flutes
• Black nitride coated by H&M
• Flush-cut 11-degree target crown
• SAAMI-spec 9mm chamber
• 1:10 right-hand twist
• P320 Compact: fits 3.8" models
• Does NOT fit P320 XCompact or RXP Compact models
• 100% Made in USA

FAQ

What SIG models are available for this spiral fluted 9mm barrel?

This barrel is offered in configurations for the SIG P320 Compact, P320 Full Size, and P365/P365XL. The P320 Compact version fits 3.8-inch models but does not fit XCompact or RXP Compact models. Always select the correct model option for your slide configuration.

FAQ

Does it need an FFL?

No. This is not the serialized part, so it ships directly to you where legal. Check your state and local laws.

What does it fit?

SIG P320 Compact, P320 Full Size or P365; choose the model when ordering.

Related: SIG barrels · Glock, SIG & handgun parts

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