True Precision TP-G19B-XT Glock 19 9mm Luger 4.5" 1/2x28 Threaded Drop-In Barrel - Stainless

The True Precision TP-G19B-XT is a drop-in threaded replacement barrel machined from 416R stainless steel for the Glock 19 chambered in 9mm Luger. Engineered as a direct-fit upgrade, this barrel installs without gunsmithing and is compatible with Gen 1 through Gen 5 Glock 19 pistols, including the 19X and G45.

The barrel measures 4.5 inches in length and is broach-cut rifled with a 1:10 twist for reliable stabilization across a wide range of 9mm bullet weights. It is machined from American-made 416R stainless steel, the premium grade favored by match-grade barrel makers for its corrosion resistance and bore longevity. The exterior carries a clean, bright stainless finish that pairs naturally with both factory and aftermarket slides.

A 1/2x28 threaded muzzle allows easy attachment of a compensator, suppressor, or other 9mm muzzle device using the industry-standard thread pitch. Like all True Precision barrels, the TP-G19B-XT is designed and manufactured in the USA to tight tolerances for drop-in fit and dependable function.