The very first P2V-1 Neptunes were delivered with the twin .50 caliber machine guns and ammunition boxes for 1000 rounds.
Martin 250ce deck turret on an bare metal P2V-7.
Emerson Aero 11A 20mm cannon.
Two forward firing 7.62 mm SUU-11A/1A Minigun pods were mounted on modified weapons racks the 4 AP-2H's of VAH-21.
Ordanance men load HVARs on a VP-6 P2V-3 sometime in 1950.