Part of an Airsoft Gun

FIG. 1 is a front, left, and top perspective view of the part of an airsoft gun in an assembled state showing our new design; FIG. 2 is a left side elevational view thereof; FIG. 3 is a right side elevational view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a front view thereof; FIG. 6 is a top view thereof; FIG. 7 is a bottom view thereof; FIG. 8 is a front, left, and top perspective view of the article in an exploded state showing our new design; FIG. 9 is a left side elevational view thereof; FIG. 10 is a right side elevational view thereof; FIG. 11 is a rear view thereof; FIG. 12 is a front view thereof; FIG. 13 is a top view thereof; and, FIG. 14 is a bottom view thereof. The broken lines shown in the figures depict environment and form no part of the claimed design.