H&K4ME
New member
Probably overthinking this. I'm installing 4 muzzle brakes on my rifles today and removed the first factory flash hider just now. being as HK doesn't use a crush washer I see do I need to use the chamfered spacer that comes with the shim pack or just shim it with the regular shims until I get it as close as I can and run it?
These are muzzle brakes, not Warcomps that have the port holes in the top that need to be aligned at 12 o clock.
These are muzzle brakes, not Warcomps that have the port holes in the top that need to be aligned at 12 o clock.