APEX DC 5" is a freestyle frame for 5" propellers. The frame is in an X-shape where the motors are positioned symmetrically to the center of the frame, which has a positive impact on flight characteristics. The Apex frame is unique in its stack mounting style. The bolts holding the stack are recessed into the carbon and are only attached in the center carbon plate, so they don't go through the bottom plate or the arms. This means that there is no need to remove the stack holding screws when replacing the shoulder, which makes servicing much easier. The frame can accommodate stacks with hole spacing 20x20mm and 30.5x30.5mm. The rear of the frame then has 20x20mm M2 mounting holes for easier attachment of the video transmitter. The arms are cut from 5.5mm thick carbon and can accommodate both 16 and 19mm hole pitch motors. Also included is a set of 3D printed parts containing motor landing pads or motor cable protectors.