3D printed Socket for the standard HPA gun Gauges. Designed for use with a 1/4" drive wrench. I am including an adapter that allows use with a 12mm wrench and a hole for up to a 3.8/4mm rod. Printed with PETG. $10.00 each shipped CONUS. NO PayPal Please. Check, MO, Zelle. I have 3 on hand and...