Cyma & E&C Airsoft V2 Cylinder Head Bumper

Whatever rubber compound they made the stock crash pads out of on the Cyma & E&C aluminum cylinder heads rots in the presence of silicone. Print out of 70A TPU in whatever orientation works best for you. Also, print it solid. The core bit may take a little working around in a circle to get everything to sit down flat. Secure with a good quality cyanoacrylate glue.