12GA RIFLED BORE ADAPTOR 3"

This adapter gives your 12 Gauge single or double shot break open shotgun the ability.This adapter is precision machined from high quality stainless steel to the OD specifications of  a 2 3/4 12GA shell.  After firing simply remove the  adapter and tip upside down to remove the spent shell.  A smooth bore is gently bored through the adapter for the bullet  (no rifling).