08-05-2017, 12:40 PM
A R Stoner mags have typically been ASC mags with an A R Stoner floor plate the last several years. ASC normally counts the chambered round when advertising the capacity. My ASC full size mags only hold 24 rounds and the only difference between the 10 round which holds nine and the five round which hold four is in the mag spring. The ASC 15 round mags only hold fourteen and have the same shape and size of 20 round 5.56/223 mags. The 15 round mag was rejected by AA and never have been sold by AA. The reliability of the 15 round mag would have benefited from a curved body in the 6.5 Grendel.