-Model: NGA1318
-Color: Black
-Material:Aluminum
-Weight: 100g
-Gross Weight: 130g
-Type: Verticle type
-Ring Diameter:25mm/30mm
-Fit: 20mm Picatinny Weaver Rail
-Bottom Mount Length: 50mm
-Provide 1" of forward scope position for better eye relief choice
-Place of origin: China