Quadcopter Landing gear for EMAX Nighthawk frame

This is a set of landing skids for the EMAX Nighthawk 280 size quadcopter frame. It attaches with slots though, so it may fit other similarly sized frames (with M3 holes that are between 144-156mm apart center to center). Uses qty 4 M3x12mm screws and hex nuts plus qty 8 m3 washers to attach to the frame. The exact frame I used it on is this one: http://smile.amazon.com/dp/B00YACIDNU

Assembly model in solidworks and .step format available here: https://grabcad.com/library/nighthawk-250-quadco