Hey guys. If anyone has a pic of an M4 upper with an A2 lower, could you please post it? I'm thinking of building up my first AR as a RRA in this configuration and would like to get an idea of what they look like. I live in NY so a collapsible is not an option, our AWB doesn't sunset  next Tuesday like the rest of the country, nothing changes here. I figure if it's got to be a fixed stock i might as well have the comfort of a full stock instead of a fixed collapsible. Thanks!