Looking to mount your optic on a trip[od for potentially spotting purposes?
now it can be done easily simply mount your optic in rings and mount the rings to the picatinny segment. I typically use these for when I compare optics side by side
 
✪SPA-180 works as a rail adapter between Picatinny rail and Arca-Swiss QR plate.
✪By using the SPA-180, equipment mounted on picatinny rail can be mounted on tripods via Arca-Swiss plate directly,enriching the universality of the picatinny rail and no need to get extra accessories.
✪T6061 grade aluminum main body, elaborately CNC machined with hard-anodized finish making it durable and resistant to abrasion and corrosion.
 
✪SPA-180
Length 7.1in.(180mm), Width 1.5in.(38mm), Thickness 0.5in.(13mm).
17 slots Picatinny rail on the top and Arca-Swiss standard dovetail structure at the base, compatible with most tripods.
Lightweight hollowed-out design, weighing only 2.15oz(61g), maximum minimize extra weight without influence to its performance.
✪Safety stop screws at the base effectively prevent loaded equipment from accidental dropping from the head.