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6 cs:go keys for AC black flag

If you're talking Vanilla CS:GO Case Keys.. (otherwise specify which keys)
I'm offering Buy on Demand.. RoW Steam Gifts

AC4 .. 8 keys + 1x SoG
AC4 Gold Edition .. 12 keys + 1x SoG
Splinter Cell: Blacklist .. 3 keys + 1x SoG
Splinter Cell: Blacklist Deluxe .. 4 keys + 1x SoG
Watch_Dogs .. 8 keys + 1x SoG
AC Freedom Cry (Standalone) .. 1 key + 2x SoG

you can also have a look here

2 Keys for AC Freedom Cry?