I recently built out my 18" Grendel and finally had the chance to shoot it. I have a Parallax adjustable gas block with a mid-length tube. I screwed the screw in all the way and backed it out 1 turn. when I shot it seemed to be releasing too much gas, the charging handle would come back and kiss my nose, a fun surprise.
I then screwed it all the way in, and it worked good great, bolt would stay open on an empty mag, but then I noticed this...
What is causing this and what shall I do?
I then screwed it all the way in, and it worked good great, bolt would stay open on an empty mag, but then I noticed this...
What is causing this and what shall I do?
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