Pass multiple radio button group values to controller in MVC4

Question

I have a situation that I need to display list of radio button groups (based on modules) and user to choose the access level (say No access, Read access, Full access). The model I have as:

public class Module
{
    public string AccessLevel{get;set;}
    public string ModuleName{get;set;}
}

public class UserData
{
    public List<Module> AllModules{get;set;}
}

In CSHTML, something like:

foreach (var n in Model.AllModules)
{
    @Html.RadioButtonFor(p => p.AccessLevel, @n.ModuleName + "_N")
    @Html.RadioButtonFor(p => p.AccessLevel, @n.ModuleName + "_R")
    @Html.RadioButtonFor(p => p.AccessLevel, @n.ModuleName + "_F")
}

On submit, how can I get the user opted values? Also I am not getting the right values selected while loading.