DURAMAG DURAMAG, DuraMag SS, Magazine, 308 Winchester/6.5 Creedmor, 10 Rounds, Fits SR25/DPMS Pattern AR-10 Rifles, Stainless, AGF Follower, Black 1008041185CPD DURAMAG SS SR25 pattern mags are made from a single piece of laser-welded 410 Stainless Steel and protected with T-360- applied coating. This is a magazine that can truly withstand the test of time" and hard use. C Products Defense took great care to design this magazine to be the best option for precision shooters but also for heavy full-auto use. Precision shooters will enjoy an incredible amount of load length for their long-range shooting while knowing that their magazine will also feed as fast as needed" every time.