I have an AW Black Ace Hi-capa pistol that i bought used (which was obviously a bad idea) and recently I discovered that the outter barrel is loose and will come off after firing a couple rounds or just by me tugging on it. Is therr a way I can fix this, like an adhesive that’s compatible with airsoft guns? Or is this gun just done for? It still shoots fine, this is the only problem that is effecting the performance of the gun that I don’t know how to fix. I’ve included a video to show the problem.