Brownells Match-Grade Barrel Features This Brownells barrel is machined to a precise fit for the Sig Sauer P365XL engineered as a match-grade replacement for the factory barrel. Built from 416R stainless steel it holds tight tolerances that produce a more consistent lockup with the slide on every cycle of the action. A button-rifled bore with a 1-10 twist and six grooves runs ahead of the 9mm Luger chamber giving the compact pistol noticeably more accuracy potential than its size suggests. Installation is designed as a straightforward drop-in fit on most P365XL pistols so shooters can upgrade without extensive gunsmithing. The muzzle is threaded at 1/2x28 tpi opening up the option to run a compensator or a sound suppressor on a pistol that ships from the factory without that capability. An extra-hard Black Nitride finish coats the barrel to resist surface wear while holding off corrosion far better than an untreated stainless surface would. Each barrel is laser engraved with its chambering and the exact Sig model it fits removing any guesswork about compatibility at installation. For P365XL owners looking to add muzzle device versatility alongside a genuine accuracy upgrade this threaded barrel delivers both in one part. Brownells Match-Grade Barrel Specifications Manufacturer: Brownells Model: Match-Grade Barrel Caliber: 9mm Barrel Style: Threaded Muzzle Threads: 1/2x28 Material: Stainless Steel Finish: Black Nitride Twist Rate: 1:10 Right Hand Rifling: Button-Rifled 6-Groove Compatible Hosts: Sig Sauer P365XL Available At: GrabAGun