Uncle Mike's Sentinel Double Magazine Pouch Black Molded Nylon Glock 17 Card. This Double Mag Case has a closure snap for use with Glock 17 magazines. Specifications for Uncle Mike's Sentinel Double Magazine Case: Manufacturer: Uncle Mike's Color: Black Fabric/Material: Nylon Magazine Type: Single Stack # of Mag Pouch Compartments: 2 # of Mags Held in Each Compartment: 1 Hand: Ambidextrous Gun Make: Glock Gun Model: Glock 17 Fastener/Closure Type: Hidden Snap Features of Uncle Mike's Sentinel Double Magazine Case Sturdy construction Holds to Glock 17 magazines Package Contents: Uncle Mike's Sentinel Double Magazine Case Uncle Mike's 89077: Sentinel Double Magazine Pouch Black Molded Nylon Glock 17 Card