The EOTech G33.STS is a fixed 3X magnifier with a switch-to-side mount. It is shorter and lighter than previous models, and the improved mount gives you a faster transition from 3X to 1X when the distance changes.
The G33 offers tool-free azimuth adjustment, a larger field of view, and an adjustable diopter so you can focus the image precisely for your eye. With the magnifier swung to the side, you are back to a clean 1X sight picture for close targets. Internal optics are fog resistant and the housing is water resistant.
The mount fits MIL-STD-1913 Picatinny and 1" Weaver rails. Mount the magnifier behind your red dot or holographic sight, then align it to the reticle before you head to the range.