I spent days looking at photos. And measuring with calipers. This is what I started mine on. The major thing that was surprising at the end of it, is the thickness of the mount is smaller than most think. as compared to the depth of the molex.
Heres one of my wip renderings. If you want the files to print to compare to yours you or anyone else is welcome.
I think I have another version on my design pc where I tweaked a few things. Most notibly ibelieve the rear mount has multiple depth layers either a mount under it, or a lip.
Scope molex and rings rendered for reference but not 100% accurate. Barrel is propertly sized but the angles on the breech not perfect.
I believe in the final version I also adjusted the direction of the bolts coming down out of the tube and added the wire.
I also believe the location of the molex to change occasionally as they broke off. And finally the only way to secure one propertly is to have the flatter side of the molex against the mount, and farther off the rear.