TriStar Arms has brought out the Viper G3 semi-automatic shotgun, the newest entry in its Viper family. A gas system with tougher internals and bigger controls lets it run a broader mix of shells from the start, while all versions share a three-inch chamber, fiber-optic front bead, matted vent rib, and chrome lining in the barrel and chamber. Gauges span 12, 20 and 28 plus .410 bore, Mobil chokes fit, some models get stock shims, finishes include hunting camouflage and sporting styles, and retail suggestions sit between 739 and 1129 dollars depending on setup.