A side plate shouldn't be that hard to get it just if you can get it by it's self without have it buy the rest of the other gun.
John the end of the berral looks ok to me, it just missing the booster. Dave had talked about the two styles of berrals in his other thread about the booster styles. The nut of the end of the booster is installed.
Here is some photos that Dave took. This is from a ground gun. The nut is on the booster.
Same berral on a aircraft gun.
Here is the end of the other style of berral. I have to go back and re-read the thread but I think one is a MG15 style and the other is a MG08/15 berral. I stand corrected if this is incorrect I refer to Dave thread for the correction.
Lloyd...