Armattan Bobcat 4" Long Range Quadcopter FrameFeatures Lightweight 4" long range FPV cruiser Compatible with Nebula, Vista and DJI Air Unit Adjustable Aluminium FPV Camera Cage Armattan Lifetime Warranty on all aluminium and carbon parts except for Arms Can be intalled as True X, or compressed X configuration Slop Proof arm mounting design Introducing the Armattan Bobcat. It's no secret that 4 inch models are making a comeback on the FPV scene. With the right power plant and with new technology