With a sensationally low weight starting at 122 g, the ultralight models of the short T3 series are suitable for use on all types of repeating arms and AR10 weapons. The 120 mm long contact surface facilitates a secure and play-free fit on every Picatinny rail. Available with 30 and 34 mm rings in 4 different heights, with or without 20 MOA. ERATAC One-Piece Mount Ultralight 30mm 0 MOA 25mm 0.984" T3013-0010