I'm glad I'm not the only one then, sometimes it's super easy but then when I expect it to be simple the f*cker damn near requires a hammer. Oh well, still an awesome gun!
I sort of found a trick that most of the time works when it's hard. Try to push the stock out as if trying to open it farther then push the button. Sometimes wiggling it back and forth like this while trying to push the button helps.
I hope it loosens.




























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