Griffen Armerment Rev9 stuck

[chef1231]

So I was trying to take the end cap off my Rev9 and its stuck on their pretty good. Is there anything I can do to loosen it up without causing damage? I have tried to force it but it just tears up the end cap and it's not any looser

 

[ROLEXrifleman]

Do a couple mag dumps and try with it hot. Otherwise I’d just send it to the Griffen sisters to deal with. Better than tearing up your can