Many thanks to Shel (KF0UR) who writes:

Remember the swivel paddle platform for the KX2 & KX3 my partner Steve KB3SII gave you at Hamvention last May? Well, it’s finally in production and shipping immediately.

https://www.qrpworks.com/key-line-magpi-store.html

It comes configured for the KX2, but includes the parts for the KX3 (a screw and a spacer) which is a very easy change to make. And for non-magnetic paddles it comes with 3M Dual Lock to fasten it. I used it with a magnetic BaMaKey for 800 QSOs on Field Day last year with my KX3. It worked great for me and the other ops.

Thanks for letting us know, Shel! I really love this key bracket and am happy to hear it’s in production.

If you want to see it in use, here are two activations from July when I used a prototype of the Key Line MagPi: