The Mark 1 P.B.D.A. or also known as the S.I.A.M. 1 Is the first suit of armor Tony Stark made after the events of Iron Man 3. The armor was made to withstand numerous repulsor blasts from Tony's previous armors that have been taken control by the group called "Ghost Squad".
The armor sported the classic red and gold color scheme. The material used featured a new repulor absorbing element, which played a big role in the comic Issue Iron Man Chaotic Volume 1 1 on why Tony was able to survive the attack made by the controlled armors.
The armor featured double charged repulsors on each hand. Double charged repulsors were made specially for this suit to deal thrice the damage that normal repulsors did.