In this video Massad Ayoob shows the differences in 12 gauge and 20 gauge shotguns for home defense.  It may surprise you that the 20 gauge really doesn’t give up anything to its big brother.  If you have one of these in the closet, it would be ideal for a conversion like our SM-1 package.  Email for details. [youtube=http://www.youtube.com/watch?v=iMv2z_PX7s0&feature=related]