Can you trade items between gta online and gta v story mode?

Grand Theft Auto Online is the multiplayer component of Grand Theft Auto V, but the information available does not describe any mechanism that allows items to be transferred between the online multiplayer environment and the single‑player story mode. The game’s design separates the two modes, with each having its own inventory systems, progression, and economy. Players cannot move weapons, vehicles, or other items from one mode to the other through any official feature. Consequently, any attempt to trade or transfer items across the two modes would not be supported by the game’s systems.