Since, I have short arms and a short length of pull, I need a little help. I built an extension rail for this purpose.

The extension rail had to match the 20 minutes built into the rail on the Panda. I had to level it with the dial indicator. Once it was level with the rail, I was able to make the picatinny. After making all the parts, I assembled them on to the action… now I wait for the barrel.