Upper Parts Kit (UPK) for Glock 19 - Gen 5. These are great for completing your custom slide. All parts are from US manufacturer. All Parts are made to the highest tolerance to the original specification.

These parts are Gen 5 specific and not compatible with any other Gens.

Features :

• Firing Pin Spring
• Firing Pin Spacer Sleeve
• Spring Cups (2-Pack)
• Firing Pin Safety Nitride
• Firing Pin Safety Spring
• Extractor Depressor Plunger Nitride
• Extractor Depressor Plunger Spring
• Spring Loaded Bearing
• Firing Pin Channel Liner