MP5-style SMG

Both protagonists carry this submachine gun through the bank-robbery sequence of the May 2025 second trailer, making it one of the more clearly shown automatic weapons in the footage. The roller-delayed action, curved magazine, and slim handguard mark it as a Heckler & Koch MP5, the 9mm SMG that became the default choice of police tactical units and special forces from the 1970s onward; observers peg the trailer gun as an MP5/40 variant.

Jason's version wears a red-dot optic while Lucia's runs iron sights, an early sign that the same base weapon supports different attachments per loadout. MP5-pattern SMGs are longtime series regulars, echoing GTA 5's MP5-like SMG. Rockstar confirmed the appearance through the trailer but has not attached an in-game name or released handling data, so fire rate, magazine size, and the full attachment list stay unknown until the game ships.