1.1. Unscrew the connection on the medium tube closest to the longer tube.
1.2. Remove the screw and bolt (keep them safely as not to lose them).
1.3. Remove the longer tube with the connections.
1.4. By untightening the butterfly screw, slide the magnetic bracket attachment out.
1.5. Flip the magnetic bracket attachement.
1.6. Put it back on the other way like shown.
And tighten the butterfly screw to hold it in place (not too much, you may need to adjust it later).
1.7. Put the connection back on the tube.
1.8. The screw and bolt as well.
1.9. Tighten the screw but not too much, you will need to adjust the gunstock once you’re done.