Zaffiri Precision Glock 17 Gen 1-4 Flush and Crown Pistol Barrel 9mm Caliber 1-10 Twist 416R Stainless Steel Titanium Nitride. Zaffiri Precision machined these Pistol Barrels from 416R stainless steel with an ultra-narrow chamber so that they fit precisely with OEM Glock frame dimensions. The Zaffiri Precision Glock 17 Flush and Crown Handgun Barrel is also stress relieved and heat treated to RC 40-42 to ensure maximum durability and performance. With each barrel there is a large ZP logo machined on the port side of the lockup that really sets these barrels apart from the rest. Add an aftermarket drop-in barrel for a more reliable experience with your target. Enhance your weapon's performance and customize it with the Zaffiri Precision Glock 17 Flush and Crown Pistol Barrel. Specifications for Zaffiri Precision Glock 17 Flush and Crown Pistol Barrel: Manufacturer: Zaffiri Precision Fabric/Material: 416R Stainless Steel Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 17 Model Generation: 4 3 2 1 Barrel Length: 6 in Barrel Material: 416R Stainless Steel Threads per Inch: Non Threaded Barrel Twist Rate: 1-10 Weight: 6 oz Condition: New Projectile Caliber: .355 Caliber Features of Zaffiri Precision Glock 17 Flush and Crown Pistol Barrel Stress relieved and heat treated to RC 40-42 Made to work with Lead plated or jacketed ammunition Large ZP Logo machined on the Port Side of the lockup Length: Flush and Crown flush with end of slide / inward crown shape Package Contents: Zaffiri Precision Glock 17 Flush and Crown Pistol Barrel What firearm models does the manufacturer say Zaffiri Precision Glock 17 Flush and Crown Pistol Barrel is compatible with? The manufacturer says that Zaffiri Precision Glock 17 Flush and Crown Pistol Barrel is compatible with Glock 17Zaffiri Precision ZP.17BG: Glock 17 Gen 1-4 Flush and Crown Pistol Barrel 9mm Caliber 1-10 Twist 416R Stainless Steel Titanium Nitride