THE SHOOTING BOX 12 GAUGE RIFLED BORE TO .357 MAG/.38 SPECIAL RIFLED BORE ADAPTER - 3"

This adapter gives your 12 Gauge single or double shot break open shotgun the ability to fire 357 Magnum or 38 Special ammunition.  This adapter is precision machined from high quality stainless steel to the OD specifications of a 2 3/4 12GA shell plus and extra half inch in front to make this adapter three inches long in total.  It will easily fit into your break open shotgun barrel and accept any 357 Magnum or 38 Special ammunition.  After firing simply remove the adapter and tip upside down to remove the spent  shell.  This adapter has a rifled bore to increase accuracy. This in NOT a smooth bore adapter. This adapter has a rifled bore.  The cartridge side is precision CNC machined to the exact chamber dimensions to accept 357 Magnum or 38 Special ammunition (SAAMI chamber specifications).

Adapter orientation is not important and the adapter will work in any position. 
Made in the USA on American machines by American workers  ......... support USA made products and companies!
Will fit any break open shotgun with 2 3/4" or 3" chambers.
Perfect for 'Preppers' or your Bug Out Bags.  Carry one gun and have the ability to shoot not only 12GA shells but also 357 Magnum or 38 Special  ammunition.
Surprisingly accurate!
Not recommended for pump action or semi-auto shotguns.  Designed for use with break open style shotguns.