The TriStar Viper Series semi-automatic, gas-operated shotguns are reliable, functional, and hard-working. Both wood and synthetic models have 3", chrome-lined chambers to take 2-3/4" or 3" shells. A manual E-Z Load magazine cut-off makes loading and unloading easy and prevents accidents. The Viper G2 Sporting has all the same great features as the rest of the Viper G2 line with the addition of an adjustable comb, a ported barrel, a target rib, a fiber-optic front sight, and a mid-bead sight. Four Beretta-style choke tubes (F/M/IC/Sk) are included.