A .308 Win. 20-rd magazine for DPMS LR-308, and SR-25 Rifles. Magazine body Constructed of heat treated steel with a black phosphate finish for durability under harsh use in the field. A Chrome-silicon wire spring and precision molded polymer follower ensure reliable feeding and function. Made in U.S.A. - See more at: https://promagindustries.com/dpms/134-dpms-sr-25-308-win-20rd-black-phosphate-steel-magazine.html#sthash.eNU2rR0h.dpuf