P P71pilot New member Feb 7, 2016 #21 Polygonal rifling isnt very good with solid lead bullets so I would say just order an extended standard rifled barrel. Now if you need an optic there are rails that clamp onto your lower frame rail and provide an upper optic rail
Polygonal rifling isnt very good with solid lead bullets so I would say just order an extended standard rifled barrel. Now if you need an optic there are rails that clamp onto your lower frame rail and provide an upper optic rail