Ply Gem multi-point locking hardware for bay or bow casement windows

Hard to tell what lock to recommend. I would need to see a photo of one removed from the window. However, to get you started, take a look at our 38-099 and 38-100 left and right hand Turth lock assemblies, as well as our 38-058L and 38-058R locking handles. Could either of these work for you?