The Amend2 Mod-C 30-round magazine is made from an updated translucent polycarbonate material that provides increased heat and chemical resistance over existing compounds on the market. It features the tried and true 4-way anti-tilt, self-lubricating follower and a heavy duty, non-corrosive, non-memory spring. Backed by the Amend2 limited lifetime warranty. FeaturesSturdy, chemical and temperature resistant polymer with textured grip4-way anti-tilt followerHeavy-duty, non-memory, and non-corrosive stainless steel spring