The Zaffiri Precision match grade barrel delivers exceptional performance for your Glock 17 Gen 1-4 pistol with professional 9mm accuracy and reliability.Zaffiri Precision Match Grade Barrel for Glock 174.37" barrel length with threaded design416R stainless steel construction for durabilityNitride finish for corrosion resistanceEasy drop-in installation - no gunsmithing requiredFlush crown design for optimal accuracyMade in the USAPerfect upgrade for competitive shooting tactical applications or anyone seeking enhanced accuracy and performance from their Glock 17 pistol.