THE SHOOTING BOX 12 GAUGE SMOOTH BORE TO .22 MAGNUM SMOOTH BORE ADAPTER - 2.45"

This adapter gives your 12 Gauge single or double shot  break open shotgun the ability to fire a 22 Magnum bullet.  This adapter is  precision machined from high quality stainless steel to the OD specifications of  a 2 3/4 12GA shell.  It will easily fit into your break open shotgun barrel  and accept any 22 Magnum ammunition.  After firing simply remove the adapter and tip upside down to remove the spent 22 shell, or use your finger nail to grab and remove the shell while the adapter stays in your gun.  The  wide groove cut in the face will not only allow you to easily remove a  spent shell but also provides a recessed clearance area for your firing pin.   Adapters that don't have this recessed area (or recessed area in the wrong spot)  do not provide the proper clearance for your firing pin and may damage your shotgun.  A smooth bore is gently reamed through the adapter for the bullet  (no rifling).  The smooth reaming is stepped (as shown in the pictures)  just like the chamber of a 22 Magnum firearm.