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Old February 4, 2019, 10:19 PM   #2
2ndchance
Senior Member
 
Join Date: March 21, 2008
Location: Glendale, AZ
Posts: 180
I run several ARs with Adam's Arms adjustable pistons. Yes, fouling will create stiffness. It would be wise to remove the a gas plug assembly and clean it. Don't let it build up too long or it could affect the ball detent. I had the ball get stuck once and the gas plug rotated during suppressed full auto fire and the gas plug shot out, smacking the back of my suppressor and launching 75 yards into the thick desert brush. No fun. Cost me $40 to replace it!
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