The Forward Controls Design EMR-MCX (magazine release button) installed on a SIG MCX Rattler. EMR-MCX follows the EMR (for AR15/M17) design with a slightly curved and horizontally serrated surface.
The Forward Controls Design EMR-MCX (magazine release button) installed on a SIG MCX Rattler. EMR-MCX follows the EMR (for AR15/M17) design with a slightly curved and horizontally serrated surface.