JK Armament Glock 19 Barrel Features The JK Armament Glock 19 Barrel is machined from 416R stainless steel for exceptional dimensional stability and corrosion resistance suited to the demands of repeated suppressor use and high round counts. A black nitride finish hardens the surface for wear resistance through extended service life and the 1:10 twist rate stabilizes 9mm projectiles reliably across standard and subsonic loads commonly used in suppressed applications. The 1/2x28 thread pattern is the industry standard for 9mm suppressors providing direct compatibility with JK Armament s 105 CCX and 155 series cans as well as most other 9mm suppressors on the market. The direct-fit design for Glock 19 Gen 1-5 pistols requires no frame modifications or gunsmithing for installation making this a straightforward drop-in upgrade for suppressor-ready builds. At 4.47 the barrel maintains a compact profile consistent with the standard Glock 19 package while adding threaded muzzle capability. JK Armament engineers its barrels specifically for suppressor use ensuring the thread timing concentricity and finish are held to the tolerances required for reliable baffle-strike-free suppressor operation. JK Armament Glock 19 Barrel Specifications Manufacturer: JK Armament Model: Glock 19 Barrel Caliber: 9mm Barrel Length: 4.47 Material: 416R Stainless Steel Finish: Black Nitride Thread Pattern: 1/2x28 Rate of Twist: 1:10 Color: Black Fits: Glock 19 Gen 1-5