Style: 1-Pc Mil-Std 1913 Picatinny Finish: Black-Matte Material: Aluminum Alloy Type Of Rings Needed: Mil-Std 1913 Picatinny Other FEATURES: Made In USA, T/C Contender Picatinny Rail Scope Mount 0MOA Dimension: 0.85 X 3.85 X 8.80 Height: 0.85 Width: 3.85 Length: 8.8