This is a miniaturized version of EOTECHs battle-tested G33 Magnifier making it one of the most compact and lightweight magnifiers available. The mount provides fast transitioning from 3X to 1X and the optic offers tool-free vertical and horizontal adjustments with a large field-of-view. The G43 works with all EOTECH HWS models. The ability to transition between the two distances almost instantly and still maintain weapon accuracy is easily achieved. EOTECH is dedicated to providing rugged, reliable and innovative products that offer a true advantage to all who use them. Due to today's ever-changing scenarios, the need to transition quickly between Clo Mfg: Eotech