I don't wanna give ridiculous offer but my guildie bought his 115/5 for 600m. That was some time ago tho. 115/5 it's just 2 30%s so I would still think twice if it is 1b. With the market right now 600m i get 3 chances of playing with perfect nisrocks.
Even in old source a 115/5 was between 1.2-1.8 b. I think your friend got really lucky but that is not an accurate price check.
sorry ,sold for a/w :3 https://royals.ms/forum/threads/s-2...luk-77wa-15luk-71wa-craven.96377/#post-523543