Dimension: 1.45 X 5.45 X 5.95 Height: 1.45 Width: 5.45 Length: 5.95 Other FEATURES:: STANAG 4694 Spec Works With Picatinny Rails, CNC MACHINED From 7075 T6 Aluminum, Made In USA Type: Picatinny Rail Height: Low Finish: Black-Matte Tube Size: 30MM Material: Aluminum