Description
HK UMP & USC - Left Side Hammer Spring For All Lowers
A high-wear item that needs to be changed when light firing pin strikes develop on your USC or UMP firearm.
Compatible With:
- HK UMP models 45, .40, & 9mm.
- USC .45 and other conversion models.
Additional Information
Origin: |
German |
Firearm Model: |
HK UMP |
Firearm Model: |
HK USC |
Caliber: |
.40 S&W / .45 ACP / 9mm |
Material: |
Steel |
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