338 single shot adaptor (bobsled)for an AI

The latest accuracy international magazine holds the bolt open when empty, this can be very annoying if you want to shot it as a single shot.
This adaptor sits in the top of the magazine and allows the rifle to shoot single shot.
To put the adaptor in , rotate it sideways and push through the top of the magazine slot then rotate it back.
To remove, push the back of the adaptor down grab hold of the front end and rotate and pull it out