247481 Brand:N/A Model:N/A Quantity:1 piece(s) per pack Color:Black Material:Aluminum alloy Ring Diameter:25.4cm Suitable Gun Type:25.4 tactical accessory and gun combination Specification:Pipe diameter: 25.4cm; Universal broad gauge: 20mm Packing List:1 x Holder 1 x Hexagon wrench Dimensions: 3.94 in x 1.81 in x 2.24 in (10.0 cm x 4.6 cm x 5.7 cm) Weight: 5.50 oz (156 g)