Just received my Hellion. Very happy. Tried to remove the flash hider. No luck. Sent to Gun Smith. $87. So 1 of the main features listed for this gun is the 2 settings for the gas port Suppressed and Unsuppressed. The issue is not unique to this rifle, several of the recent rifle acquisitions have the flash hider torqued on to about 2000lbs. I know there are lots of folks that provide advice and videos, but I suggest not risking the damage to your rifle and take it to a gunsmith.