The previews show that all the buttons and lights are lit, but this is just an example. It is assumed that you will decide which buttons and lights will be lit. That is, you will create the logic yourself. How to do this is up to you. For example, you can apply a certain material to each light depending on whether it should be lit or not.
The sight was supposed to be a collimator or something like that, but you can see that it is just glass. I could add a red dot, but there is no point in this, because it is wrong. That is, you will also need to create the sight yourself.It is assumed that the sight will pop up when you press the button on which the sight is drawn.The power button turns the blaster on and off.The button with a bullet and arrows is the button for changing the firing mode. Above there are lights that are also shaped like bullets (although they look like bottles). The left light (which is alone) should be lit when the single shot mode is on. And the three right lights should glow when the automatic shooting mode is on.