A Classic forend is a stretch to fit in a RV, a #5 is about the max that looks good.

The GW has a HTG forend, that's only .075" +/- wider, but makes it a great fit for a RV w/o going any beefier, and staying somewhat compact.

A HTG would be a bit more "compact" overall, but most seem to complain about an HTG's comb being too low. They don't bother me at all.

I just happen to have a GW in Urban Spectre that shipped out last Friday........