The ornamental design for an injectorgun, as shown and described.
FIG. 1 is a front upper side perspective view of a injector gun showing my new design.
FIG. 2 is a left side view thereof.
FIG. 3 is a right side 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; and,
FIG. 8 is a rear upper side perspective view thereof.
The surface shading and contour lines shown in the drawings represent the three-dimensional character and contour of the article, and are not intended to illustrate material, surface ornamentation or surface decoration.
The broken lines are shown for the purpose of illustrating environmental subject matter which forms no part of the claimed design.