Product Details
German HK Action-3 MP5 bolt head complete, includes firing pin, later style braided spring and locking piece. Ready to drop onto your MP5/MP5K bolt carrier.
These Action-3 bolt heads have the dished profile bolt face and spring style roller retainer. These IO heads also have the later style firing pin braided spring.
IO date code bolt head
Original German HK production, surplus very-good condition.
