I have the AR7 in one of my BOB's and I'm happy with it. It's not going to win any competitions but I have to say it's pretty darn accurate with fixed sights. I have several BOB's and the one with the AR is actually a medic backpack with:

AR-7 (plus 300 rounds .22) and a cheapo scope
10 AR-7 magazines
Emergency Water
Firestarters
Knife and sharpener
Wire saw
Emergency blanket
Signal mirror
Binoculars
CB Radio w/weather band

...and all sorts of other stuff.

This is generally the bag I grab on my way out the door if I am spending the day in the mountains. I also have smaller emergency kits in all my cars that have many of the same items but are more handgun specific (holster, ammo, etc) since I rarely (if ever) leave the house without a pistol.