[Hectic]

the problem with those airfin "bb's" is two fold, first they are not heavy enough and two no hop up, yes i know the fins are spose to stablize the flight but because they are flat fins the dont put any spin on it so it doesnt help much then they only weigh .16g or .19g or something light like that, on top of it all if you loaded one of those in a standard airsoft gun it wouldnt get a propper airseal cause the fins would be in the hop rubber and the bb part would be mostly out.
it does have some potential if it were a heavier round with some angle on the fins but would require a modified hop up or would have to be the new standard and hop ups (i guess they would just be air seal chambers at this point) would have to be redesigned.
they tried, then shortly after they put out a new version of their inner barrel with a hop up, i must say tho, their lil shell ejecting design is fun, and the "shells" are cheap enough that u dont have to pic em up. Someone should design a gbbr with that feature lol