Each GLOCK magazine is constructed from a hardened steel insert encased in high tech polymer to protect the magazine and prevent deformation" even when dropped from a great height. The high quality spring and follower ensure reliable feeding from the first to the last shot.
DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. or GLOCK Ges.m.b.H. These products are not manufactured, sponsored or otherwise endorsed by GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of parts, components, or accessories that are compatible with GLOCK pistols or products. For genuine GLOCK, Inc. and GLOCK Ges.m.b.H. products and parts visit www.glock.com.