USGI M-16 20rd Magazine. These are vintage production USGI contract magazines with the aluminum followers. We have magazines manufactured by Colt, Adventure Line, Simmons and Universal. These manufacturers were government contractors during the war and the magazines are "correct" for Vietnam War era contracts. Overall VG to VG+ used condition with some finish wear. Magazines all work well. US sales only. Do not order if your state has a high capacity magazine ban.