is your adjustment knob really hard to turn after a few hundred rounds? I have dismantled the gas block and cleaned it and the knob moved easily. I shot a couple hundred rounds and it was back to being difficult to move again. I disassembled again, cleaned again and used a very small amount of high temp grease and it was moving easily. I shot a few hundred rounds and back to being hard to turn. Is this just the way it is or can I do something about it? Different grease?
The gas plug is tough to remove from the block. I need to tap it with a brass punch to get it out. Please let me know your experience with this gas block so I can assess if this is normal.