WA Para Ord Firing problem

[ASHIO]

Does anyone know where the piece shown in this picture fits into my para ord? I took the slide off a while ago to give it a clean as there was some sand inside and this piece fell out. The pistol now fires 2-3 BB's, so it may be some kind of feed device.



I cant seem to find a diagram of it or examples in any manuals. has anyone else with WA experience tell me how to put this back where it should go? many thanks,

ASH