Projectile Dysfunction is the most popular remix of the Pen15 15mm launcher. Build your very own pirate launcher/signaling device today! Download This hardware kit uses M3 hardware. Make sure to print the M3 parts. Exact Part Count M3 x 40mm SHCS 1 M3 Hex Nut 4 M3 x 20mm Bolt 2 M3 x 6mm Bolt
Go get yourself a hardware kit and get to printing! M3 version now included in the updated file on the sea.