Which RIS system for me?

[Coski]

Hey all.

I'm looking for a free float rail system for my KWA RM4 ERG. Ideally id like a rail system that I could squeeze an 11.1 lipo inside. Needs to be black and around 12-13 inches long(it's for a 14 inch barrel.

I also obviously need to be able to access the battery connector to change the battery, so something that perhaps can be unattached quickly or is a two part system would be most ideal.

I particularly like the look of the G&P URX 3 rail, as well as the Noveske NSR rail. Unfortunately I'm not able to get my hands on any so I've no idea how accommodating they are when it comes to batteries.

I am aware of battery PEQ boxes and will get one if I have to, but I'd rather not which is why I'm looking for alternatives.

Cheers