Heckler and Koch Low Profile Complete Gas Block for HK MR556, HK416, HK German
Factory slimline, low-profile gas block for the HK416 and HK MR556. This is the factory-correct gas block found on the MR556. Correct gas block to use with tight-clearance Geissele handguards on 14.5″ & 16″ uppers. Will not work on a 10.4″ upper without modification to the gas port hole.
Does not feature the bayonet lug or sling attachment points.
Compatible With:
- HK416, MR556
- HK CR556









