The ornamental design for a magazinerreleaselever, as shown and described.
FIG. 1 is a side view of a firearm receiver with a magazine release lever.
FIG. 2 is an enlarged view of the magazine release lever of FIG. 1 shown in isolation from the firearm receiver; and,
FIG. 3 is a perspective view of the magazine release lever shown in FIG. 2.
The broken lines showing a lower receiver in FIG. 1 illustrate environment which forms no part of the claimed design. Additional broken lines shown in FIGS. 1, 2, and 3 illustrate portions of the magazine release lever that form no part of the claimed design.