Zaffiri Precision IBS Complete Upper 9mm Luger Ported RMR Cut Black - Fits Glock 19 Gen 3

The Zaffiri Precision IBS Complete Upper is a drop-in slide assembly for the Glock 19 Gen 3 chambered in 9mm Luger. Built around Zaffiri Precision's signature Integrated Blowhole System (IBS), this complete upper delivers premium slide machining, recoil-reducing performance, and optic-ready capability in a single drop-in package.

The slide is machined from a single billet of 17-4 stainless steel with tight tolerances for improved accuracy and performance. The integrated IBS design features a large, angled port cut into the top of the slide that works in concert with a flush, back-bored 416 stainless steel barrel finished with an inward crown. This combination channels gas up and away from the pistol, reducing carbon buildup on the slide while helping manage recoil and muzzle rise during rapid fire.

The slide carries a durable black finish and is machined with an integrated RMR optic cut for direct mounting of Trijicon RMR-pattern red dot sights. The matched barrel is finished in black nitride for corrosion resistance and long wear life. The slide ships blank with no iron sights installed, purpose-built for red dot use. American-made to Zaffiri Precision's exacting standards, this complete upper is designed as a direct replacement for the factory slide on a Gen 3 Glock 19 frame, letting you build, upgrade, or refresh your pistol with one of the most distinctive compensated slide systems on the market.