Chekout the new program on Discovery Channel @ 10 pm everyday "SONS OF GUNS". Features an expert gunsmith Mr Will who customizes fire arms. In Monday's episode he integrated a M16 Assault rifle with 12 gauge shotgun
to provide the Tact force with both assault n door busting facility in the same weapon. In Tuesday's episode he build a suppressor for shotgun (the db level was reduced to 144 in place 160) 
. People with interest in firearms is a must c.Thanks Moulindu