Here we go. I read that it uses standard keymod parts. So all the rails and such they offer. Here is a pic with some additional rails on it
Just like the mfr it is nice n light and allows u to only attach as much rail as u need zo u dont gotta lug extra weight for no reason
And yes all the cool kids are using keymod type rail systems theese days lol. Itz the new magpul or multicam lol. The m4 one is nice lookin to and save 6oz or weight over the simaler 12 inch rail systems by voltor
Vltor VIS-KM (Keymod) - official release of information - M4Carbine.net Forums