Installed into the bomb bay of this aircraft was a belly set of guns. Two 20 MM Cannon and Two 12.7 MM machine guns. Unlike the packs attached to the RAF Boston III Invader or the P-70, that fired straight ahead these could be swung to fire down as well. In concert with the four 20 MM Cannon and the two .50 Cal machine guns in the nose this aircraft would have an impressive weight of fire. Some of these aircraft were fitted with radar apparatus, but this one appeared to be under control of the rear gunner/navigator via a periscope arrangement. Perhaps a good part of the initial sighting and aiming (pilot guiding?) was done via two large windows cut into the sides of the fuselage
Christ, don't tell Cobia!
the 6 50 are already very deadly against fighters but 4 20 would be rediculus(i like it )