hello, i have a very weird problem. After installing my promethesus 363mm barrel, im trying to put it inside the outer barrel now. But for some reason, when i try to slide the outer over inner barrel, it wont fully go in. Heres a pic to better explain my situation:
My older inner barrel can slide through, but for some reason, my new one cant seem to slide in. It seems like its stuck at the very tip of the outer barrel. I even tried to put a bit of silicon grease inside the outer barrel so the inner can slide easier.