Hmm, probably already know, but didn't see a post.
New grenade, You can fill BB's in through the bottom, easily, no speed loader required... and looks super cool (reminds me of flash bangs)
I will personally pick these over impact (140 vs 200 bbs though). - Timers still stand relevant. Looks 5x faster to setup and go, no need to worry about losing those washers and stuff inside.
https://www.youtube.com/watch?v=bstS5vjWSjE
http://www.airsoft-innovations.com/
Find it funny how the US suppliers got their hands on it first, when the warehouse is at up in North York -_-"