This is a remix rather poorly done from Tigerace1945 stowage and Mojobobs 13-40 sadly no longer available on thingiverse, you can find it here https://www.wargaming3d.com/product/fiat-m13-40/
Range finder to come
1/00 scale version, scale 178.5 for bolt action 28mm model
UPDATE
I have uploaded an improved file. I had printed the 40_command print file twice and both times it had a fault through it.
I have redone it and built the range finder. The new model is 1:56 scale or 28mm for boltaction. The current version has the twin MMG.