[RedDragon]

@Eukie I suppose not. By the time the armor design section came up I was already more than 20,000 lbs. over the target weight of the design (115,000 lbs., about the same as his official statistics) so even DR 1 would weigh in at ~1,500 lbs. The TL15 superscience armor was necessary for the sake of integrity.

Also, the Metal Gear Wiki says REX's Armor is "near-impenetrable compound armor (of which only HEAT weapons could deal sufficient damage)", which suggests a high DR (it was made to resist missiles much larger than the Stinger's.)