What is that? Battery powered - is it a solenoid type gun? Does it fire metal slugs from impact by a solenoid? Or is it a miniature rail-gun? Looks interesting enough for me to build one. I might have to paint the tip orange because people panic when they see toy guns, and the orange signals caution to police. (Hmmn, why aren’t crooks painting the tips of real guns with orange?)
Never mind, looked it up. Rubber band gun!
https://www.etsy.com/listing/470841799/rubber-band-machine-gun-rbmg-01