Strike Industries Enhanced Magazine Plate for Glock 19, +5, Black SI-EMP-G19 The Strike Industries Extended Magazine Plate For GLOCK G19 (9mm) was designed to provide smoother magazine reloading through a low drag/no snag design while maintaining maximum magazine capacity with any OEM Double Stack GLOCK magazine for G19. The Extended Magazine Plate (EMP) provides an additional +5 rounds to any G19 GLOCK magazine.