I have one of those too, + QR clip*, I have an extra to move it between bikes 1 bolted to the flap of my Carradura saddle bag..
the other, combining its clip & B&M mount that slips over the rails of the saddle, the whole set can go on more bikes.. & off into your pocket.
* also coming thru PDW sources..
https://www.planetbike.com/blog/grateful-red/