Aim-O M2 Red Dot with Cantilever Mount BlackThe M2 Red Dot with cantilever mount, made by Aim O, is CNC machined from aluminum alloy and has a non reflective finish. This lightweight and compact sight weighs 310g, uses 2 x LR44 batteries, and is windage and elevation adjustable. The product with a tube diameter of 30mm is compatible with a standard Picatinny rail interface system. The additional lens protective covers protect the glass from external damage during transport or storage. The