SilencerCo AC5335 9mm Luger 1/2x28 5" Barrel for Glock 17 Gen 5

The SilencerCo AC5335 is a precision threaded barrel built specifically for Glock 17 Gen 5 pistols. Cut from match-grade 416R stainless steel and finished in a low-glare black nitride, it offers the tight bore tolerances and surface durability that suppressed-host builds and duty-grade upgrades require.

Chambered in 9mm Luger, the AC5335 is a full 5" barrel with a 1/2x28 thread pitch for compatibility with the wide range of 9mm pistol suppressors and fixed-barrel spacer configurations on the market. The black nitride finish seals the steel against carbon adhesion and corrosion while preserving the dimensional stability of the underlying stainless billet, keeping cold-bore accuracy and long-term service life consistent.

Designed as a replacement for the factory Glock 17 Gen 5 barrel, the AC5335 fits the standard Gen 5 slide profile as an upgrade barrel. It is a turnkey enhancement for shooters building a quiet range pistol, a suppressed home-defense handgun, or simply refreshing a worn original barrel. A thread protector is included so the muzzle threads stay clean and damage-free whenever a suppressor is not mounted.