For just a little extra space, you can turn your AK-style rifle clone to 11. Or 40! These AK-47 40-round magazines are built using a durable, proven Zytel polymer, which is a proprietary blend developed by DuPont. The enhanced magazine body provides room for up to 40 rounds of 7.62x39mm, giving you more trigger time on the range! These AK-47 40-round magazines feature a heat-treated magazine spring made from chrome-silicon wire, as well as an injection-molded magazine follower. The mags will not fit in standard Saiga rifles, and each magazine is made in the USA. Mfg: Pro Mag