The new G33.STS magnifier is shorter and lighter than previous models. The improved mount provides faster transitioning from 3X to 1X. The G33 offers tool free azimuth adjustment, a larger field-of-view and an adjustable diopter for improved, precise focusing. Compatible with all EOTech Holographic Weapon Sights Length/Width/Height: 3.9 x 2.2 x 3.3 (99 x 55.9 x 83.9 mm) Weight: 11.2 oz (317.5 g) Water Resistant: Submersible to 33 ft (10 m) depth Mount: MIL-STD-1913 rail 1" Weaver Fixed Magnification: 3X Eye Relief: 2.2 (55.8 mm) Field of View: 7.3° Sealing: Fog resistant internal optics