Upper Parts Kit (UPK) for Glock 19 - Gen 4. 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.

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