This is the Accurate Mag 3 round .30-06 single stack AICS Long Action magazine.
The single stack single feed magazine is heat treated and then black Teflon coated.
The magazine is in the common 3.715" length sizing for common factory rifles and chassis, including MDT.
Magazine dimensions: 0.736" width x 3.715" length x 2.93" height
Max OAL: 3.615"