Firearm lower receiver

[0001]FIG. 1 is a top rear left isometric view 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;

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

[0007]FIG. 7 is a rear view thereof;

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

[0009]FIG. 9 is a top view thereof;

[0010]FIG. 10 is a bottom view thereof;

[0011]FIG. 11 is an enlarged detailed view of FIG. 2; and,

[0012]FIG. 12 is an enlarged detailed view of FIG. 4.

[0013]The evenly spaced broken lines and the unshaded areas adjacent to them depict portions of the firearm lower receiver that form no part of the claimed design. The dot-dot-dash broken lines depict the boundaries of the enlargements that form no part of the claimed design.