134369 Model:No Quantity:1piece(s) per pack Color:Black Material:Aluminum alloy Gun Type:20mm rail guns Specification:suitable for 20mm rail guns PackingList:1 x Gun Rail mount 1 x Wrench Dimensions: 2.87 in x 1.18 in x 1.38 in (7.3 cm x 3.0 cm x 3.5 cm) Weight: 2.19 oz (62 g)