The Amend2 Mod-C 30-round magazine is made from a translucent polycarbonate material that provides increased heat and chemical resistance over existing compounds on the market. It features a 4-way anti-tilt, self-lubricating follower and a heavy-duty, non-corrosive, non-memory spring. Designed and manufactured in the USA with American parts and craftsmanship. Backed by the Amend2 limited lifetime warranty.