H&K HK SEF & Navy 3 Position Trigger Spring
Elevate your HK 90 series performance with a factory-fresh trigger spring, designed for both semi and full-auto models. These are an essential upgrade for any 90 series owner, ensuring optimal functionality by replacing old, worn-out springs or serving as reliable spares. These springs are a must-have for enhancing your firearm’s reliability.
These springs are compatible with any NON-burst trigger pack.
Compatible With:
MP5, MP5K, SP89, & SP5K
HK G3, HK91, PTR
HK 93, 33, HK33K, & HK53
Other HK 90 series trigger packs
In-spec clones and custom builds
