NAME: Asguard Blade Protector
Update: add cutout for better prop clearance, rings3 is the latest revision.
Snap on guard for estes proto x quadcopter
It should snap onto the battery cover that comes on the proto x. It might need some filing on the center beam to clear the rear props. I will change the model when I get back to my CAD station. Let me know if you make one if it fits your model.