The Zaffiri Precision ZAF Upper Parts Kit For Glock 19 Gen 4 provides all the critical slide internals you need to complete or refresh a Gen 4 G19 build. Each component is manufactured in the USA and held to tight tolerances that match original Glock specifications, helping ensure reliable ignition, extraction, and cycling once installed in your custom or OEM slide.

This kit is ideal for anyone assembling a stripped Glock 19 Gen 4 slide for range use, training, or everyday carry, and pairs perfectly with your choice of barrel, sights, and guide rod assembly. Because the geometry is Gen 4 specific, it should only be used with compatible Gen 4 slides. Zaffiri Precision is known for precise machining and thoughtfully engineered parts that make building and maintaining modern pistols straightforward.

Key Features:

• Manufacturer: Zaffiri Precision
• Model: UPK-G19G4
• Type: Upper Parts Kit For Glock 19 Gen 4 Slides
• Color: Black
• Subcategory: Handgun Parts
• Compatibility: Glock 19 Gen 4 Slides