 The primary weapon of the ARA units was the 2.75" Folding Fin Aerial Rocket (FFAR).While the B and C model UH-1s could carry up to 48 of these rockets in two racks of 24 each (XM-3 subsystem), the faster, more powerful Cobras could carry 76.In addition to the rockets, the UH-1s carried two M60 machine guns mounted in the cargo doors as defensive weapons operated by the aircraft's crew chief and a door gunner, while the Cobras were armed with a 7.62mm minigun and a 40mm grenade launcher in a nose turret.