C-51 conversion

[MCarter]

Hey Guys,

A friend mine has a Cavalier C-51 he bought this thing off ebay and it was painted Pepsi blue. As you can see from the picture this thing needs some love. But here is the question of the Day......He restored it and has started putting it back together and has noticed that the inner door liner will not fit right. So look close at the picture and see if you can guess why? '>

Well come to find out it was an conversion to accept larger bottles on the ammo belt. Any of you ever seen this?
Thanks,
Matt