Strike Industries EMPG43XBK Enhanced Magazine Plate made of Polymer with Black Finish & Extra Gripping Surface for Glock 43X Magazines (Adds 2rds) The Strike Industries G43X Extended Magazine Plate (G43X EMP) design provides smoother magazine reloading through its low drag / no snag design. The G43X EMP provides multiple functions, primarily an additional 2 rounds bringing the G43X capacity up to 12 (10 round double stack + 2 with EMP).