Description
HK Heckler & Koch HK MP5, MP5K Spring – Hammer – 9mm
Each factory HK hammer spring will work in all 9mm & 40/10 trigger packs. Do not settle for an HK contract when you can have HK German for less. Great upgrade for all of the clones that use the improper hammer spring.
Compatible With:
- HK MP5
- HK MP5K
- HK94
- HK SP89
- HK MP5 40,10
- Other HK MP5-style custom builds or clones
