Designed by a friend of mine, so all credit goes to him. A cap that fits over the ImmersionRC EzUHF 4 channel lite Receiver (plastic cased version). Slide this over and it helps stop the right angled SMA adapter from bending and ruining your EzUHF RX board.
You will be required to ream out the hole for the SMA socket/antenna plug. No big deal though. Push on fit.