how many crates to get frf2

hi , I was wondring how many crates you bought to win frf2 and does 32 k zp can get me the gun (i bought 10 crates on june i didnt get it ) thank u

its only luck son
some poeple got it in 1 creats |
and people got it in in 80 creats = my brother won it
and some people won sh!t in 90 creats = me = won nothing QQ