You can find the Ballistic Advantage Barrel for Glock 19 Gen3-5 Threaded Spiral Flute Gold here.

The Ballistic Advantage Premium Series Threaded Barrels for Glock feature a hardened 416R stainless steel material for absolute durability and corrosion resistance. Each barrel is honed, lapped, and tumbled to ensure it is free of any imperfection and ready for flawless performance. These barrels do not require a break-in period. All barrels are held to less than .0001 deviation of the bore, reaching better than factory tolerance for optimum reliability and accuracy. All barrels meet SAAMI chamber specifications and have a 1/10" Button Rifled twist. Includes a standard thread protector.

The QPQ and PVD finishes offer outstanding protection against the elements while enhancing the barrel's appearance. QPQ improves surface hardness and wear resistance, while PVD adds a durable coating. Expect excellent corrosion resistance and long-lasting durability.

Firearm: Glock 19 Gen3-5
Finish: PVD Gold
Fluting: Spiral Flutes
Threads: 1/2x28"
Length: 4.5"