214110 Brand:N/A Model:N/A Quantity:2 piece(s) per pack Color:Black Material:Aluminum alloy Suitable Gun Type:Suitable for guns with 20mm rail Specification:Solid construction with two pegs to decrease jitter， aluminum alloy shell; Caliber: 25mm; Easy installation; Comes with a wrench. Packing List: 2 x Holders 1 x Wrench