US Made - HK 416, MR556 Barrel Mandrel Tool.
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This made removing the stubborn original flash hider on my MR556, then replacing it with one that wo...
This made removing the stubborn original flash hider on my MR556, then replacing it with one that would work with my suppressor, a quick and easy task. Expensive tool, but worth it to avoid the risk of cracking your upper in a vise block, or damaging your gas block trying to be creative.