This armor is a very suitable subsitute for regular Metal Armor, being that it has the same DR, but the weight is cut in half and has other bonuses. The only bad thing is the health difference.
The effects from the armor are listed as "heavy metal armor" in the effects tab on your Pip-Boy.
ps3 The brown leather portion of this armor may appear to be red.
Behind the scenes
This armor is the first item in two-part reference to Mad Max: Beyond Thunderdome. Two characters, Master and Blaster, correspond to the Metal Master armor and the Metal Blaster, respectively. Raider blastmaster armor also exists in Fallout 3.