Key Glock 20 Gen 4 Magazine 10mm 15/rd specifications: Factory magazine Fit: Glock 20, 40 pistols Follower: Black anti-tilt polymer Material: Polymer with full-length steel inserts Rear-facing numbered round indicators The Glock 20 Gen 4 10mm 15/rd magazine is a standard factory product made of high-resistance lightweight polymer. This factory-original, drop-free magazine is specifically designed for your Glock 20 Gen 4. These factory Glock magazines boast a hardened steel insert brilliantly encased in high-tech polymer. This protective polymer coating ensures the Glock 20 Gen 4 magazine is safeguarded against deformation, even if it's dropped from significant heights. Upgrade your Glock 20 with a magazine designed to resist deformation. Purchase the Glock 20 Gen 4 10mm 15/rd magazine today!