The FF forend on the V match is press fit and glued over the barrel nut. It comes as a 1 piece unit. It is the worse POS forend ever made. When the forend gets bumped (in shipping etc) it will move on the barrel nut. I replaced mine with a 2 piece unit from Tony's Uppers. When I went to take the BM forend off, it was so loose I could spin it off with my fingers. Do yourself a favor and replace your BM forend and gas block.