After paying that sort of price I am not too interested in what they say,
I would rather pay for legal advice using the sale of goods act as a starting point. If these guns are continuing to have problems then AA should sort them out not just sell them and hope for the best. I am happy to see what happens for now but won't watse time sending it backwards and forwards to AA.
It is worth looking on line at the sale of goods act, AA can make statements about not being covered by the act but as a supplier that insist on the gun going back to them they are ultimately responsible, I will take em on if I need to.