Magazine assembly and a stapler including the same

A magazine assembly, configured to be assembled to a stapler, including:

• a base, having a first end portion and a second end portion, a direction from the second end portion toward the first end portion being defined as a first direction;
• a rail assembly, disposed on the base and adapted for a staple unit to movably abut thereagainst along the first direction, including a first rail and a second rail which are separate, the staple unit including a T-shaped staple and a U-shaped staple;
• wherein a distance between a top of the first rail and the base is substantially equal to a distance between a top of the second rail and the base;
• wherein the U-shaped staple defines two straight sections and a curve section, as viewed in the first direction, the two straight sections are symmetrically arranged by a center line of U-shaped staple, the curve section is divided equally by the center line, the second rail has two guiding portions, the two guiding portions are adapted for abutting against an inner wall of the U-shaped staple and being located by two sides of the center line of the second rail, each of the guiding portions has a first end point, a second end point and a successive segment, the first end point is closer to the center line than the second end point, and the first end point is farther away the base than the second end point, and the successive segment is connected with the first end point and the second end point;
• wherein as viewed in the first direction, the successive segment of one of the two guiding portions is an inclined face and approximates to the first rail, and the successive segment of the other of the two guiding portions is stepped and away from the first rail.