Mayhem Festival Gunmetal G Pen Now Available Online!

We’re 4 shows into Mayhem Fest and due to the high demand from all you Mayhem fiends who couldn’t make the fest, Grenco Science are bringing the limited-edition Mayhem Festival Gunmetal Pen™ directly to you. 


The exquisite gunmetal vaporizer features a G Glass Tank™ and fits perfectly into the pocket size, Mayhem Festival branded travel case.

Grab your Mayhem Festival Gunmetal G Pen now for only $69.95 at while supplies last! Visit the G Pen tent at every Mayhem Festival date for highly discounted prices.


Click here for more information.