Anyone with any experience of these on an AR? It appears to have a BDC dial on the left of the tube but can anyone confirm if it is calibrated for 5.56/223 at all?
Also it is a 30 milimeter tube - what would be the best way of attaching to the rail on my flattop?
Also it is a 30 milimeter tube - what would be the best way of attaching to the rail on my flattop?

Comment