HK German 416, MR556 14.5" & 16.5" & 20" Gas Block CompleteThis is the factory correct gas block that has the ambi sling attachment points as well as the bayonet lug milled into the gas block. Perfect for those that want to swap the MR556 gas block for the HK416 version. This gas block also has the proper milled gas relief hole.
- MR556
- HK416