Elite Tactical Systems ETS 10mm Mag for Glock 20 Capacity:30 Single point retention adjustment to Single point retention adjustment to decrease space Height adjustability makes magazine ride high enough for easy back pocket access and close fit Ambidextrous design allows for magazine bullets facing forward or backward What’s a holster without a magazine pouch Dual fleece lined side hand warmer pockets with internal storage pockets for cell phone and D ring feature for carabiner key security Pen pockets on left sleeve Roomy chest pocket at the seam with hook and loop dividers to accommodate a full sized radio or a smaller object without it dropping to the bottom of the pocket The Shield Job Shirt features a heavyweight cotton blended fleece and is as functional and durable as it is comfortable our mag base is designed to be compatible with Glock extensions ETS mags won't crack or break Advanced Polymer Benefits: Extreme Impact Resistance won't crack or break when dropped Very resistant to harsh chemicals Superior heat