Abstract: A buffer magazine includes a conveyor belt (3) of reversible type and including a horizontal stretch (103) carrying the cigarettes arranged crosswise thereto in superposed layers, and moving between two vertical side walls (2) on a supporting table (8). The horizontal cigarette-carrying stretch (103) of the conveyor belt (3) has associated therewith a transverse partition wall (7) extending upwardly between the two side walls (2) and moving, through corresponding movements of the conveyor belt (3), alternately away from the inlet of the magazine to increase the capacity of the magazine and store cigarettes, and toward the inlet of said magazine to reduce the capacity of the magazine and return stored cigarettes.