VISM AR15 Ergonomic Pistol Grip w/ Storage Compartment Tan. Ergonomic design to fit comfortably in the Operators hand. Front and rear textured grip surface for comfort and secure gripping surfaces. Storage Compartment can store two each CR123A batteries spare parts or emergency survival supplies Reinforced Polymer Construction Includes mounting screw. Dimensions: 4.2"H X 2.8"L X 1.1"W Weight: 2.3 oz. Specifications for Vism AR15 Ergonomic Pistol Grip w/ Storage: Manufacturer: VISM Gun Model: AR-15 Material: Polymer Fabric/Material: Reinforced Polymer Included Accessories: Mounting Screw Package Contents: Vism AR15 Ergonomic Pistol Grip w/ Storage What firearm models does the manufacturer say Vism AR15 Ergonomic Pistol Grip w/ Storage is compatible with? The manufacturer says that Vism AR15 Ergonomic Pistol Grip w/ Storage is compatible with AR-15VISM VAGPART: AR15 Ergonomic Pistol Grip w/ Storage Compartment Tan