Looking to install ARCA rail on a 10/110 BA (original style)

[Thump_rrr]

I have both a 10BA and a 110BA that i’d like to install Area 419 ARCA rails on.
Im trying to figure out what hardware would be required to do this with the existing slot on the bottom of the 10/110 BA chassis.
The slot is 3/8” wide and opens up to 1/2” on the exterior.
https://i.postimg.cc/kGcq5QsW/67-F59-F59-15-EF-49-BE-9687-9-ACD7-F66-AC8-A.jpg (https://postimg.cc/vxcpq6pm)how to upload image on website (https://postimages.org/)

[Dave Hoback]

Remove the short section of Picatinny rail. I believe the included hardware supplied with the Area 419 rails will work. If not, you’d need the proper size T-nut hardware, it seems to me. I’d likely machine my own Aluminum T-nuts.