I have a Bushnell 1.5-4.5x32 Banner Dusk & Dawn Rifle Scope, 1/4MOA, 67-33 FOV, 4"eye relief and 10.5oz. This is on my SA58 and has worked out very well.
On my AR180B I have a Nikon red dot which I may change to a Simmons ProDiamond 1.5-5x20 since the variable power on the .308 has worked so well.