sig sauer 556 question

Discussion in 'Auto & Semi-Auto Discussion' started by ddog, Apr 22, 2010.

  1. ddog

    ddog New Member

    can i replace the basic "classic" forend with the sport configuration model's "trirail" forend? i like the trirail's looks and how it has plenty of rail space. it seems like it should be a straight forward swap since the forends are removed for basic cleaning. thanks for any help.