I'm thinking of replacing a Bushmaster Carbon 15 9mm rifle with a FNH PS90. Anybody out here have any experience with one of these little rifles? I want this gun to be an option I can reach for when things go bump in the night. Right now my 1911 is backed up by a Benelli Super Nova, a great combo for holding your ground, not so good on the search side. PS90 USG, Semi-auto Carbine, Black 50 rounds, even small high velocity rounds, has to command some respect on the targeted side.