Got this thinking I was needing to fold my antenna, but ended up mounting it permanently and don't need to have it fold anymore. Took it out of the box, but never installed or used it. Like new! These go for about $95 on their site. Dropping the manufacturers description below. Good luck!

Product Details

The MXATMT2 is the premier folding antenna mount for off-roaders who deal with low-clearance obstacles. With a simple pull-and-pivot motion, you can fold your antenna down for garages or thick brush, making it the most versatile MicroMobile antenna bracket on the market.

4-POSITION FOLDING
Easily adjust antenna angle for clearance or storage.
HEAVY-DUTY PIVOT
Built to hold heavy fiberglass antennas upright at highway speeds.
RUGGED FINISH
Textured black coating to match most aftermarket bumpers and racks.
ONE-HAND OPERATION
No tools required to fold or raise your antenna on the fly.