BOLT CATCH SPRING HK416 417 MR BUILDER’S PACK HAUS 🇺🇸March 26, 2023
Genuine HAUS bolt catch springs.
- This spring is used in the bolt catch assembly as the plunger spring and also in the bolt carrier itself as the safety catch spring.
- Pack includes 6 bolt catch springs.
🇺🇸 Made In USA