The Glock 42 .380 6 round magazine is a factory original that has a high tech polymer coating. The polymer coating protects the mag as well as prevents it from any deformation. This Glock 42 380 6 round magazine has a drop-free design, meaning it falls out or is ejected when you press the magazine release.  These durable Glock 42 mags with hardened steel inserts are built to last.