I have a SMS I & II and a NES toaster and top-loader; but only one style of light gun (phaser, zapper.. whatever) for both of them. I have a Zapper (Model NES-005) that is lt/drk grey with an orange trigger, and I believe that this is the model for the top loader; as I remember the toasters coming with an all orange & beige Zapper.
My SMS light phaser is black with an orange barrel tip (Model 3030) and I believe this is the one made after the barrel-slide SMS II came out as I've seen an ALL black one with the SMS I's.
Can anyone confirm this? I'm trying to get the guns (the two models I don't yet have) to complete my collection and want to match them to the right units. If I do indeed have the two later models of guns for the two later consoles.. I guess I'm kinda' lucky because I'd imagine they would be the more difficult ones to find due to the smaller production numbers of the later console models.