Xtech Tactical MTX Magazine Extender w/ Spring for 9mm M&P Shield

The Xtech Tactical's M&P Shield 9mm +2 Magazine Extender is compatible with factory magazines and installs in seconds. Unlike other extenders on the market, this patent-pending design permits for a consistent internal wall throughout the extender, which is smaller than the magazine tube. The included spring was engineered specifically for the M&P Shield 9mm to allow for unmatched reliability and last round slide hold open. XTech Tactical's MTX line of extenders are simply unmatched for r