US D491621 S1
FIG. 1 is a perspective view of a firing pin block embodying the new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top, plan view thereof;
FIG. 4 is a bottom view thereof; and,
FIG. 5 is a sectional view of FIG. 2 taken along the lines 5—5. thereof.