The whole premise for needing an AR with mounted bear spray is kind of rediculous, the last time I was surrounded by a herd of red eyed, blood thirsty bears I just picked the shortest bear in the herd, jumped over it and ran away. No, the real utility for a device such as this is..... Velociraptors, because after you drop the raptor in front of you with a withering hail of fire, you're going to need some kind of reserve to take care of the raptor that is undoubtedly sneaking up right behind you.