CHIAPPA X-CALIBER 12GA/.380 GAUGE ADAPTER INSERTDimension: 1.85 X 2.15 X 9.00Height: 1.8500Width: 2.1500Length: 9.0000TYPE/COLOR: GAUGE ADAPTER INSERTSIZE/FINISH: 12GA/.380ACPMATERIAL: STEELOTHER FEATURES:: FOR USE WITH ANY BREAK OPEN SHOTGUN RECOMMENDED...