Like new condition wiser precision chrono mount pro. This will work with the v3 and sporter. Comes with the display mount holder ($50 add on), arca mount ($65 add on) as well as pic rail mount.
$150 shipped
If you’re not familiar with these mounts, more info is here on their website. https://www.wiserprecision.com/products/chrono-mount-pro
$150 shipped
If you’re not familiar with these mounts, more info is here on their website. https://www.wiserprecision.com/products/chrono-mount-pro