Unless you did one of the easy bounties for a gun then you just got lucky with a drop. Its funny when people get butt hurt over xur selling exotics. I think it would be hilarious if he sold weapon engrams for once. Imagine all the shit people would get, and all the butt hurt people would be because there 'special' (lucky drop) exotics are in the hands of thousands. I personally hope everyone gets all the exotics I have( I only have like 10 weapon exotics). If everyone has them all bungie will just have to put more in. Btw, bad juju sucks but looks cool as shit.