Sig Sauer P365, XL, Macro & Fuse Ported & Non-Ported Barrels | Fdez Werx

Match-grade 416R stainless steel Non-LCI flush & crown and ported 9mm barrels (3.1", 3.7", 4.1", and 4.3") engineered for Sig Sauer P365, P365X, P365XL, X-Macro, and Fuse platforms. Designed for drop-in fitment with Fdez Werx P365 slides and OEM P365 recoil spring assemblies.

📏 View P365 Barrel & Slide Fitment Chart (Click to Expand)

Sig Sauer P365 Barrel Fitment Guide

Sig Sauer P365 Slide & Barrel Compatibility Chart

Fdez Werx P365 - Non-LCI - Ported - 3.7" Barrel (XXL/XXL 2.0 Slides Only)

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Now: $159.99

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Fdez Werx P365 - Non-LCI - Flush & Crown - 3.1" Barrel

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Now: $144.99

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Fdez Werx P365 Fuse - Non-LCI - Ported - 4.3" Barrel

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Now: $159.99

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Fdez Werx P365 XL - Non-LCI - Flush & Crown - 3.7" Barrel

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Now: $144.99 - $164.99

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Fdez Werx P365 XL 3.0 / ACCS - Non-LCI - Ported - 3.7" Barrel

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Now: $159.99

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Fdez Werx P365 - Non-LCI - Ported - 3.1" Barrel

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Now: $155.99

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Fdez Werx P365 Fuse - Non-LCI - Flush & Crown - 4.3" Barrel

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Now: $144.99

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Fdez Werx P365 Fuse Threaded Barrel with Thread Protector

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Now: $159.99

Out of stock
Fdez Werx P365 XL 3.0 - Non-LCI - V Ported - 3.7" Barrel

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Now: $159.99

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Fdez Werx P365 Fuse - Non-LCI - Chunk Port - 4.3" Barrel

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Now: $159.99

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Fdez Werx P365 - Non-LCI - Ported - 3.7" Barrel (XXL/XXL 2.0 Slides Only)

Fdez Werx 3.7" ported P365 barrel for Fdez Werx XXL and XXL 2.0 slides, made to reduce muzzle rise. Product Specifications Length: 3.7" Ported Caliber: 9mm Supported chamber Material: 416 stainless...

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Now: $159.99

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Fdez Werx P365 - Non-LCI - Flush & Crown - 3.1" Barrel

Fdez Werx 3.1" non-LCI flush and crown barrel for the P365. Product Specifications Length: 3.1" Muzzle: Flush and crowned Profile: Non-LCI Material: 416 stainless steel, heat treated Finishes: High...

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Now: $144.99

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Fdez Werx P365 Fuse - Non-LCI - Ported - 4.3" Barrel

Fdez Werx 4.3" non-LCI ported barrel for the P365 Fuse, with a port layout made for the Fuse. Product Specifications Length: 4.3" Ported (Fuse-specific port layout) Muzzle: Flush cut and...

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Now: $159.99

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Fdez Werx P365 XL - Non-LCI - Flush & Crown - 3.7" Barrel

Fdez Werx 3.7" non-LCI flush and crown barrel for the P365 XL. Product Specifications Length: 3.7" Muzzle: Flush and crowned Caliber: 9mm Profile: Non-LCI (reduces gas and residue blow-back toward a...

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Now: $144.99 - $164.99

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Fdez Werx P365 XL 3.0 / ACCS - Non-LCI - Ported - 3.7" Barrel

Fdez Werx 3.7" non-LCI ported barrel for Fdez Werx P365 XL 3.0 and ACCS XL slides, tuned to those slides' ports. Product Specifications Length: 3.7" (standard XL / Macro length) Ported, under 6%...

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Now: $159.99

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Fdez Werx P365 - Non-LCI - Ported - 3.1" Barrel

Fdez Werx 3.1" ported, non-LCI P365 barrel. It fits a discontinued Fdez Werx slide and is offered for owners of that slide while supplies last; it is being phased out at the end of 2026. Product...

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Now: $155.99

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Fdez Werx P365 Fuse - Non-LCI - Flush & Crown - 4.3" Barrel

Fdez Werx 4.3" non-LCI flush and crown barrel for the P365 Fuse. Product Specifications Length: 4.3" Muzzle: Flush and crowned Profile: Non-LCI Material: 416 stainless steel, heat treated Finishes:...

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Now: $144.99

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Fdez Werx P365 Fuse Threaded Barrel with Thread Protector

Fdez Werx threaded non-LCI barrel for the P365 Fuse, for suppressor and comp setups. Thread protector included. Product Specifications Thread: 1/2x28, flush and crowned shoulder Caliber:...

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Now: $159.99

Out of stock
Fdez Werx P365 XL 3.0 - Non-LCI - V Ported - 3.7" Barrel

Fdez Werx 3.7" non-LCI V-ported barrel for the Fdez Werx P365 XL 3.0 slide. Product Specifications Length: 3.7" V-ported, under 9% velocity loss Muzzle: Flush and crowned Caliber: 9mm Profile:...

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Now: $159.99

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Fdez Werx P365 Fuse - Non-LCI - Chunk Port - 4.3" Barrel

Fdez Werx 4.3" non-LCI chunk-ported barrel for the Fdez Werx P365 Fuse slide. Product Specifications Length: 4.3" Chunk port design for the Fuse Muzzle: Flush and crowned Caliber: 9mm Profile:...

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Now: $159.99

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