Eagle Gun Range -Macon GA - X-Caliber Ammo Adapter Set for Shotguns. It's an 8-piece set of drop-in adapters that measure seven inches long each, and it comes with a carrying case.
Chiappa X-Caliber 12 Gauge Rifled Adapter *Choose Caliber NZ - Shotgun Parts by Gun City
Chiappa X-Caliber 12 Gauge Rifled Adapter *Choose Caliber NZ - Shotgun Parts by Gun City
Chiappa X-Caliber Inserts Now Available Individually
X Caliber Shotgun Gauge Adapter reveal by Tim Ralston of NatGeo 's Doomsday Preppers - YouTube