155 Anthem Airbrush Only w/Protective Cap Siphon Bottom Feed

Great air brush. Works well, easy to clean. I have a question....The rubber finger pad shown in the picture has come off mine. The rubber either deteriorated or just ripped a bit and won't stay on I glued it on but came right back off. Can Hobbylinc get this part or is it even necessary. I have been using it without it fine. I notice many brands do have even have this rubber pad on the trigger. If it is $2.00 or less maybe I'll buy it. If it's $25 no thanks. Happy modeling out there. SK Ohio