Zaffiri Precision Glock 19 9mm Luger Threadless Compensator and Pistol Barrel 4.5in 1-10 Twist Titanium Nitride Gold. Their solid 416R stainless steel match grade barrel and strong 17-4 threadless compensator allows for not only gas redirection but less muzzle climb due to its weight. What does that mean for you? Faster follow-up shots. Using a Ransom Rest they found a 33-35percent decrease in muzzle flip when testing with a wide variety of ammo. Utilizing their Ball-Vise locking system (patent-pending) it takes just one set screw to install. With it's unique design to bypass the need for a threaded barrel this is one must-have piece for your collection. Specifications for Zaffiri Precision Glock 19 9mm Luger Threadless Compensator and Pistol Barrel: Manufacturer: Zaffiri Precision Color: Gold Finish: Titanium Nitride Fabric/Material: 17-4 Stainless Steel Caliber: 9mm Luger Gun Make: Glock Gun Model: Glock 19 Barrel Length: 4.5 in Barrel Material: 416R Stainless Steel Barrel Twist Rate: 1-10 Rifling Profile: 1/10 Broach Cut Features of Zaffiri Precision Glock 19 9mm Luger Threadless Compensator and Pistol Barrel Compatible Only with the Provided ZP Threadless Comp Barrel 120 degree Port Opening to Concentrate Downward Forces Threadless Barrel that Extends Past Slide Muzzle Hole to Accommodate Threadless Compensator Package Contents: Zaffiri Precision Glock 19 9mm Luger Threadless Compensator and Pistol Barrel Set Screw What firearm models does the manufacturer say Zaffiri Precision Glock 19 9mm Luger Threadless Compensator and Pistol Barrel is compatible with? The manufacturer suggests that Zaffiri Precision Glock 19 9mm Luger Threadless Compensator and Pistol Barrel is compatible with Glock 19Zaffiri Precision ZP.19BTCG: Glock 19 9mm Luger Threadless Compensator and Pistol Barrel 4.5in 1-10 Twist Titanium Nitride Gold