The gas powered M870 Tactical shotgun from Tokyo Marui. 

Sticking with the traditional TM 3 barrel system this gas powered M870 can shoot either 3 or 6 bbs at a time. 

Each magazine (1 included) holds 30 rounds. The gas is stored in the stock in a sealed reservoir, so you can carry spares when out on the field. This shotgun is a lot heftier than the older TM models, mainly due to its full metal receiver and outer barrel. 

Features: -Metal outer barrel and receiver, plastic stock and hand-guard -3 or 6 shot (Selectable) -Approx 2.7kg -30 rounds magazine capacity -Approx 300 fps -Gas powered. We recommend either 144a or Green Gas only. Do not use Red or Black gas or equivalents.