BB2K Airsoft gives us quick overview of the Tanaka M1897 Trench Gun. Introduced in 2008, this is based on the Winchester M1897 Trench Shotgun. Made of ABS with Wood Stock, it is a gas pump action model airsoft shotgun with a capacity of 5 shells... "Gun in 60 seconds feat. Tanaka Works M1897 Trench Gun Airsoft from 2008."