I am not a Harrier pilot but have covered most development of it ( 1 & 2 , RAF & some Navies ) & systems, so have seen the good bits & failings - gun could be sorted in a real ( er ) war, - I agree why not now - care for any ACM if you had the chance
Utter rubbish. If the Harrier GR7/9's could have effectively carried guns, then they would be by now. I speak with some experience on this matter also, having been a part of the original cannon fit trials to the Harrier GR7. A more comedy set up, you never did see. Bloated Gun pods, barely inches from the ground, barrels extending over a 1.5' from the pods, like discarded broom handles, and difficult to maintain and operate. Not without throwing an awful lot of money at the problem, would you get a British Harrier GR with guns.
Flipflopman