Please text anytime 6476871484. Brand new. 12GA to 357 Magnum & 38 Special - RIFLED Shotgun Adapter Designed for break-open style guns Precision machined from stainless steel made in USA This is a 3 inch long RIFLED adapter This adapter gives your 12 Gauge single or double shot break open shotgun the ability to fire a 40S&W 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, again this adapter has a rifled bore. The cartridge side is precision CNC machined to the exact chamber dimensions (SAAMI chamber specifications). Adapter orientation is not important and the adapter will work in any position. 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 40S&W ammunition. Surprisingly accurate! DO NOT use in pump action or semi-auto shotguns. Designed for use with break-open style guns only. The risk is that the cartridge could fall out of the adapter causing a dangerous situation. Also, it could damage the adapter upon ejection.