Black Scorpion Outdoor Gear Universal Ambidextrous IWB Double Stack Magazine Carrier 9mm .40S&W Black Universal. This magazine carrier is compatible with all 9mm and .40 S&W double stack magazines. This is achieved by adjusting the retention with a 3.5mm hex key. The belt attachment is compatible with1.75'' belts. Specifications for Black Scorpion Outdoor Gear Universal Ambidextrous IWB Double Stack Magazine Carrier 9mm .40S&W: Manufacturer: Black Scorpion Outdoor Gear Color: Black Fabric/Material: Kydex Magazine Type: Double Stack # of Mag Pouch Compartments: 1 Hand: Ambidextrous Gun Make: Glock Gun Model: Universal Caliber: 9mm Luger .40 S&W Belt Width: 1.75 in Accessory Attachment System: Belt Loop Belt Loop/Snap Width: 1 - 2 in Features of Black Scorpion Outdoor Gear Universal Ambidextrous IWB Double Stack Magazine Carrier 9mm .40S&W This magazine carrier is compatible with all 9mm and .40 S&W double stack magazines. This is achieved by adjusting the retention with a 3.5mm hex key. The belt attachment is compatible with1.75'' belts. Package Contents: Black Scorpion Outdoor Gear Universal Ambidextrous IWB Double Stack Magazine Carrier 9mm .40S&W Black Scorpion Outdoor Gear MP01-IWB-UNIBKAD: Universal Ambidextrous IWB Double Stack Magazine Carrier 9mm .40S&W Black Universal