The True Precision Glock 19 9mm Barrel features a premium titanium copper nitride finish and is precision-engineered for enhanced accuracy and reliability in your Glock pistol.True Precision Glock 19 9mm Barrel with Titanium Copper Nitride FinishFits Glock 19 19X and Model 45 (9mm) pistols in Gen 1-5Made from 416R stainless steel with USA sourced materialsAdvanced proprietary broach cut 6 groove rifling with 1/10RH twistEasy to install drop-in design requiring no gunsmithingCompetition style 11 degree target crown for improved accuracyFully supported SAAMI spec chamberCompatible with all ammo types including cast leadDesigned and manufactured in the USA by True Precision for personal defense and competitive shooting applications this barrel offers enhanced accuracy potential and reliable performance.