Zaffiri Precision Flush and Crown Pistol Barrel Glock 17 Gen 5 9mm 1/10 Twist 1/2x28 416R Stainless Steel Titanium Nitride. High quality performance you demand with an easy drop-in barrel upgrade. DISCLAIMER: This product is not manufactured authorized endorsed or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. Specifications for Zaffiri Precision Glock 17 Gen 5 Flush and Crown Pistol Barrel: Manufacturer: Zaffiri Precision Fabric/Material: 416R Stainless Steel Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 17 Gen 5 Model Generation: 5 Barrel Length: 4.2 in Barrel Material: 416R Stainless Steel Threads per Inch: 1/2x28 Barrel Twist Rate: 1-10 Flutes: Yes Weight: 6 oz Quantity: 1 Features of Zaffiri Precision Glock 17 Gen 5 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. Package Contents: Zaffiri Precision Glock 17 Gen 5 Flush and Crown Pistol Barrel What firearm models does the manufacturer say Zaffiri Precision Glock 17 Gen 5 Flush and Crown Pistol Barrel is compatible with? The manufacturer suggests that Zaffiri Precision Glock 17 Gen 5 Flush and Crown Pistol Barrel is compatible with Glock 17 Gen 5Zaffiri Precision ZP.17G5BG: Flush and Crown Pistol Barrel Glock 17 Gen 5 9mm 1/10 Twist 1/2x28 416R Stainless Steel Titanium Nitride