Glock Original Equipment (OEM) G19 9mm 15 Round Magazine. New in Retail Packaging.Caliber : 9mm - Capacity : 15 Rounds - Material : Metal/Polymer - Finish : Black - GLOCK magazines have a stiff metal tube encased in the proven GLOCK high-tech polymer. This resists deformation- even when dropped from great height of exposed to extreme environment conditions. The standard capacity magazine available with the G19 is 15 rounds.