March offer middle focus wheels for a range of models.

These focus wheels enlarge to diameter of the focus / parallax adjustment knob, making finer adjustments easier.

The wheels are aluminium and anodized black.

There are 4 sizes, they simply slip over the parallax knob and tighten in place with 3 small grub screws.

Sizes available are: 

31mm ID - Fixed power 48×52, 40-60×52 EP Zoom,
non-illuminated models of 10x-60×52 (D60V52L & D60V52LM & D60V52T & D60V52TM)
(inner diameter 31mm) - Note this has been discontinued, this is the last stock.

34mm ID - non illuminated 1x-4.5x, 1x-10x, 2.5x-25x, 5x-50x, 8x-80x, 1x-8x, 3x-24x, 5x-40x, 10x-60×56, 4.5-28×52, 6-60×56

36mm ID - illuminated 1x-4.5x, 1x-10x, 2.5x-25x, 5x-50x, 8x-80x, 1x-8x, 3x-24x, 5x-40x, 10-60×52, 10x-60×56, 4.5-28×52, 4-40×52, 6-60×56

39mm ID - illuminated 5-42×56 illuminated models

Please select the size compatible with your scope model.