![Zev Spring Loaded Extractor Bearing, 9mm Zev Spring Loaded Extractor Bearing, 9mm](https://cdn11.bigcommerce.com/s-jhpuef8jie/images/stencil/300x300/products/2080/1917/zev%2520spring%2520loaded%2520bearing__38542.1639689706.jpg?c=1)
Zev Upper Parts kits includes the following:
- Channel liner
- Striker sleeve
- SpringĀ Cups
- Extractor Rod, Bearing ,and Spring Assembly
- ZEV Backplate
- ZEV Steel Firing Pin Safety and Spring
- 2 lb striker spring
- 3 lb striker spring
**Fits Gen1-4, not Gen5 compatible