The Strike Industries Aluminum Extended Magazine Plate for GLOCK G17 (9mm) / G22 (.40 cal) was designed to provide smoother magazine reloading through a slow drag / no snag design while maintaining maximum magazine capacity. Machined from 6061-T6 aluminum" this Extended Magazine Plate (EMP) adds plus 5 9mm or plus 4 .40 cal rounds to compatible OEM double stack GLOCK magazines.

Features:
Machined from 6061-T6 aluminum
Plus 5 round capacity for 9mm
Plus 4 round capacity for .40 cal
Includes aluminum locking plate