In 1735–1736 Arslan was nureddin under his uncle Qaplan I Giray at the time of the first Russian invasion.
In 1736–1737 he was kalga under his brother Fetih II Giray at the time of the second Russian invasion.
He added a west wing to his palace, strengthened Perekop, Arabat, and other forts, and built mosques, madrasas, and public fountains.
Arslan gained control over unruly members of the Giray clan by giving them honorable posts in Crimea.
He appointed as kalga his son and future khan Devlet IV Giray.