Want to win a US$500 custom airsoft gun? Yep, that's correct as it was announced by HobbyTron. Their instruction is simple, just tag away at their Instagram Page and the person who makes the most tags wins. So start firing away and better make sure you beat everyone else. And watch the video below, you'll love their introduction to the promo.

"We promised it, and here it is! First give away: Tag more friends than anyone else on our instagram http://instagram.com/hobbytron and you'll win this free custom made gun!"