HRT Tactical Gear Maximus Inserts - Heavy Black. This insert allows most heavy size magazines to be inserted. The inserts are elastic and if your magazine is similar in size to the ones pictured it will probably work. Hold up to 2 Large Magazines Fits Maximus Placard Elastic construction to fit most magazines NOTE: Only works with Maximus Placard System. Specifications for HRT Tactical Gear Heavy Maximus Insert: Manufacturer: HRT Tactical Gear Color: Black Size: One Size Fabric/Material: Elastic Quantity: 1 Accessory Attachment System: Velcro Features of HRT Tactical Gear Heavy Maximus Insert Hold up to 2 Large Magazines Fits Maximus Placard Elastic construction to fit most magazines Package Contents: HRT Tactical Gear Heavy Maximus Insert HRT Tactical Gear HRT-FPMXIN-HV-BK: Maximus Inserts - Heavy Black