Re: AR 10
I've had my Armalite AR10 for eight years and have never needed the use of a foward assist. Between the powerful buffer spring and the mass of the bolt carrier, if the bolt fails to close when chambering a round, you don't want to force it beyond that point. If a gummed up, dirty action is significantly slowing down the bolt carrier, then forward assist would be of use. I've just never let my rifle get in that condition.