Faxon's Match Series pistol barrels for SIGA(R) P365 XL are machined in-house from stress-relieved 416-R stainless 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.Technical Specifications:Handgun Type: SIGA(R) P365 XLBarrel Caliber: 9mmBarrel Profile: Straight Fluted, Drop InBarrel Material: Stress Relieved 416-R Stainless SteelBarrel Twist: 1:10Crown: 11-degree Target CrownMuzzle Thread: A 1/2-28 TPIRifling Type: Conventional