Home / Barrels, Choke Tubes, & Muzzle Devices / Sig Sauer / Sig Sauer P365 9mm Threaded Barrel 3.7 LCI 1/2-28 P365-X Compatible Suppressor Ready
▼ 11% below avg
Sig Sauer P365 9mm Threaded Barrel 3.7 LCI 1/2-28 P365-X Compatible Suppressor Ready
Lowest Price
$169.6
MSRP
$219.99
Savings
23% off
In Stock at
10 Stores
Updated
Jul 4, 2026
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1/2X28 Thread Pitch
Compatible with P365/P365X Models
Features Factory Loaded Chamber Indicator
Not Compatible with P365-XL/P365-XMACRO or P365-FUSE
Description
Sig Sauer P365 9mm Threaded Barrel3.7" - LCI - 1/2-28 Threading - P365/P365-X Compatible Factory replacement threaded barrel designed and tested for the P365 chambered in 9mm with 3.1" slide assembly. Works on P365 and P365-X slides. Thread configuration: 1/2-28 RH. Features factory loaded chamber indicator (LCI) witness hole. Includes thread protector cap when not in use with compensator or suppressor. Sig Sauer factory pistol barrels are specially heat-treated for toughness and durability. Note: Compatible with P365 and P365-X models. Not compatible with P365-XL, P365-XMACRO, or P365-FUSE slide assemblies.1/2-28 RH Threading1/2-28 right-hand threading for suppressors or compensators. Thread protector cap included.Factory LCI Witness HoleFeatures factory loaded chamber indicator (LCI) witness hole for chamber status verification.P365 and P365-X CompatibleFits 3.1" slides found on P365 and P365-X models. Not compatible with P365-XL, P365-XMACRO, or P365-FUSE.Factory Heat-TreatedSig Sauer factory barrel specially heat-treated for toughness and durability.Thread Protector IncludedIncludes thread protector cap when not in use with compensator or suppressor. The Sig Sauer P365 threaded barrel delivers factory suppressor capability-3.7" with 1/2-28 threading for P365 and P365-X.SPECIFICATIONSManufacturer: Sig SauerModel: P365 Threaded BarrelCaliber: 9mmBarrel Length: 3.7 inchesThread Configuration: 1/2-28 RH (Right Hand)Loaded Chamber Indicator: Yes (LCI Witness Hole)Compatible Slides: P365, P365-X (3.1" Slides)Not Compatible With: P365-XL, P365-XMACRO, P365-FUSE Slide AssembliesHeat Treatment: Factory Heat-Treated (Toughness and Durability)Thread Protector: IncludedType: Factory Replacement BarrelApplications: Suppressor Host, Compensator Installation, P365 Upgrade, P365-X Upgrade, Threaded Barrel Conversion





