Floss 1 RX antenna mount
This is printed in TPU and slides over the back standoff to mount your RX antennas at a 45 degree angle. The antenna tubes will be almost parallel with the back arms. The holes for the antenna tubes are 3.5mm. They should fit all types of antenna tubes. If your tubes are smaller then that diameter please use hot glue to hold the tubes in place. Works very well with "forever tubes" from Great3D.
Also, depending on your PDB, this print may or may not fit on the back standoff and clear the PDB. If your PDB is almost touching the back standoff you may have to modify things to make it fit.
(Tubes not included) But can be found here - Forever Tubes