I believe he can use his arms because his soul was fractioned/copied into Anko's curse mark prior to his being sealed by reaper death seal.
私は彼の魂は前に彼の刈り取り死シールにより封止されているにアンコの呪いマークに分画し/コピーされたので、彼は武器を使用することができます信じています。
He used his arms lol he removed Kabutos chakra with his arms.
He used his arms lol he removed Kabutos chakra with his arms.