Description
HKP Enhanced Recoil Rod Spring for HK UMP, USC
Upgrade or replace your UMP recoil system with HKP’s enhanced heavy recoil rod spring from HK Parts. This spring is approximately 10 percent stronger than a standard recoil spring, making it ideal for improved durability and consistent cycling in factory configurations or custom UMP builds.
Compatible With:
- HK UMP
- HK USC
