Airsoft Master got the APS Striker 12 Street Sweeper gas powered airsoft shotgun at their store and here is what they say about it... "The APS Striker 12 Street sweeper is a gas powered shotgun that uses shells  that hold the bb's and gas propulsion. Plus this is a really cool innovation from APS alongside their CAM 870. It is really close to a real like shotgun and can help clear corners in those CQB Fields. If you want to preorder your own striker 12 from APS check it out at airsoftmaster.com!"