NORINCO 1897 TRENCH GUN 12GA 2 3/4″ 20″ $499.99 The Norinco 1897 Trench Gun is a contemporary reproduction of a 12 Gauge WWI / WWII Winchester 1897 trench shotgun, known as the M97 or 97 Trench Sweeper used in both World War One and World War Two. Add to cart