Firearm lower receiver

[0001]FIG. 1 is a top rear left isometric view of a first version of a firearm lower receiver showing the new design;

[0002]FIG. 2 is a bottom front left isometric view thereof;

[0003]FIG. 3 is a left side view thereof;

[0004]FIG. 4 is a top rear right isometric view thereof;

[0005]FIG. 5 is a bottom front right isometric view thereof; and

[0006]FIG. 6 is a right side view thereof.

[0007]FIG. 7 is a top rear left isometric view of a second version of a firearm lower receiver showing the new design;

[0008]FIG. 8 is a bottom front left isometric view thereof;

[0009]FIG. 9 is a left side view thereof;

[0010]FIG. 10 is a top rear right isometric view thereof;

[0011]FIG. 11 is a bottom front right isometric view thereof; and,

[0012]FIG. 12 is a right side view thereof.

[0013]The broken lines and the areas within the broken lines depict portions of the firearm lower receiver that form no part of the claimed design.