where is all the SBP mags at?

I have a set of 4 aluminum slotted mags that are unilug but they are all 14". I am not sure of the width off hand. The rear ones were on my 74 Duster until I found a set of 15" and the front ones were on a 68 GTX. I can measure the back spacing and width if you are interested. They are natural aluminum color.