That's really interesting;) It's going to be a bear on the parts front likely at least unless someone clones it and it becomes popular enough to actually support a good amount of aftermarket stuff since I don't see anything that will be standard other than maybe the motor. Either way really freaking cool, fills the niche of another good shotgun option well. Honestly I'd rather see this mechanism in pump form rather than the gas 870 they released. Gas is cool but it's hard to get as functional as an AEG without some sort of external line setup. This could really be a good system to allow shotguns to be more realistic and effective which I'm always game for;)
Luke