The Strike Industries aluminum extended magazine plate for Glock G17 (9mm)/G22 (.40 Cal) is engineered to enhance magazine reloading with its slow drag, no-snag design while maximizing magazine capacity. Precision-machined from 6061-T6 aluminum, this extended magazine plate (EMP) adds 5-rounds for 9mm or 4-rounds for .40 Cal to compatible OEM double-stack Glock magazines. Building on the success of previous EMP systems, its geometric design not only improves functionality but also adds a unified and aggressive aesthetic to your Glock G17. Each plate includes an additional aluminum locking plate for enhanced security. Give your Glock pistol the added capacity it deserves with the Strike Industries aluminum extended magazine plate (EMP).