ProMag Industries

ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality. Features : - 20-Round Magazine - Fits AR-308 / .308 Cal AR Type Rifles Using Lr-308 (Dpms) Or Sr-25 Pattern Magazines - Magazine Body Constructed of a Proprietary Dupont Zytel Based Polymer - Injection Molded Magazine Follower - Magazine Spring Formed From Heat Treated Chrome Silicon Wire - Does Not Fit Rifles Using Armalite Pattern Magazines - Made in the U.S.A.