Does anyone know what size grub screw would fit the M3 valve adjuster knob? There are three threaded holes that look like they are for grub screws to hold the valve knob in place once you are done adjusting. I’m always nervous about bumping that valve knob in the field or while handling the gun, thereby throwing off my “perfect” tune.
FX M3 Valve Knob Grub Screw
- Thread starter Air Hondo
- Start date
Get a sticker printed with inch or cm measurements on it (Like a tape measure).
Stick the above on the side of the valve adjustment rod over the 4 lines between the gun and the start of the valve adjustment knob (See the red line for location).
That way you will know exactly what setting you are on.
Stick the above on the side of the valve adjustment rod over the 4 lines between the gun and the start of the valve adjustment knob (See the red line for location).
That way you will know exactly what setting you are on.
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