Need Some Rail Info

[Iraqgunz]

Can anyone tell me positively what rail system will work with a Noveske N4 barrel with a Switchblock installed? Thanks.

UPDATE: Let me revise this. What rail system(s) as in other options will work with this. Thanks

[Cagemonkey]

Maybe the VLTOR CASV-EL. The switch block would take the place of the FSB.

[No.6]

Probably the SWS since Noveske sells that one also.

[Iraqgunz]

Please only provide an answer here if you are 100% sure what will work. I am not being a dick but there is a specific reason for the request. Thanks.

[Cagemonkey]

Just looked at photos on Noveske's website. They leave the block exposed like a FSB, so I'm pretty certain. Not 100% though. Hope I didn't waste your time. You might have to take a chance if no one can give you a 100% answer, or e-mail Noveske and waite a while.