Sorry, no personal experience. In Phoenix area, I rarely see them at shows,$450-$500 when I do. All that I've read says that it is quite reliable, but the gas system is designed around the mag. only, not special. As to use for "inside" home defense, most any mag. load would no doubt go through the BG and continue on through one or more walls. It would seem to be OK for keeping BG's from getting TO the home, however. There may be some collector interest in this model which might influence your choice to alter it in any way. Hope this helps.
