The Griffin Armament ATM Threaded Barrel for Glock 19 (Griffin Armament part number GAG19G5TB) is a 4.5-inch replacement barrel chambered in 9mm and built for shooters who want to add a Griffin compensator or suppressor mount. Griffin Armament machines this barrel with the same Universal Taper Mount threading used across its ATM lineup, so it pairs directly with Griffin’s compensators without an adapter. High-quality components and precise manufacturing are the hallmark of Griffin Armament parts, built for maintaining and upgrading factory firearms. It is a clean upgrade path for Glock 19 Gen 5 owners planning to run a threaded muzzle device.

Key Specifications

• Measures 4.5 inches in barrel length, matching the factory dimensions of the Glock 19.
• Chambered in 9mm, the standard caliber for the Glock 19 platform.
• Part of the ATM series, built around Griffin’s Universal Taper Mount threading for direct compatibility with Griffin compensators.
• Classified as a Barrel, giving a complete, direct-fit replacement for the factory Glock 19 barrel.

Frequently Asked Questions

What compensators fit this barrel? It uses Griffin’s Universal Taper Mount threading, so it pairs directly with Griffin Armament’s ATM-compatible compensators.

What pistol is this barrel built for? It is a direct-fit 4.5-inch, 9mm replacement barrel for the Glock 19.

Buy the Griffin Armament ATM Threaded Barrel for Glock 19

Upgrade your Glock 19 with a precision Griffin Armament ATM barrel built for compensator and suppressor compatibility. Order it from our Griffin Armament lineup of Glock barrels and our Lubbock, Texas team will get it shipped out quickly.