Faxon Firearms SIG Sauer P365 XL Threaded Barrel 9mm Caliber 1-10 Twist 416-R Stainless Steel Chameleon PVD Multi 365B910NXSOQ-T-NCR. Faxon Firearms built these Pistol Barrels for drop-in installation with no gunsmithing required. This Faxon Firearms...