The TriStar Viper Series Semi Automatic Gas Operated Shotguns are
reliable, functional and hard working. Both wood and synthetic models
have 3" chambers to take 2 3/4" or 3" shells. Chambers are chrome
lined. Barrels are threaded for the Beretta®/Benelli® style choke tubes
and every gun comes with 3 tubes (IC, M, F) standard.