FIG. 1 is a bottom, front perspective view of a first embodiment of the firearm pin, showing my new design;
FIG. 2 is a top, front perspective view thereof;
FIG. 3 is a lower, right, rear perspective view thereof;
FIG. 4 is an upper, left, rear perspective view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a rear view thereof;
FIG. 10 is a front view thereof;
FIG. 11 is a right side view of a second embodiment of a firearm pin, showing my new design.
FIG. 12 is a left side view thereof;
FIG. 13 is a top plan view thereof;
FIG. 14 is a bottom plan view thereof;
FIG. 15 is a rear view thereof; and,
FIG. 16 is a front view thereof.
The broken lines showing portions of the firearm pin are included for the purpose of illustrating portions of the article and form no part of the claimed design.