This brand new Chiappa M6 (CF500.184) is a over/under/break action shotgun/rifle which fires the 12 gauge shell and .22 LR round. It has an 18.5" barrel (Remington modified choke) and matte black finish. This includes 8 barrel adapters (.44 mag, .45 acp, .410 gau, 20 gau, .380 acp, 9mm, .357 mag & .40 s&w), box and manual.