Description
Heckler and Koch German HK416 and HK MR556 14.5″ & 16.5″ & 20″ Gas Block Complete
This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want to swap the MR556 gas block for the HK416 version. This gas block also has the proper milled gas relief hole.
Compatible With:
- HK416, MR556
