I have been investigating purchasing two night vision devices: a set of goggles and a weapon's sight to mount on an M1A. Thermal is the best but I cannot afford this "gold." Hence, I am pursuing starlight type 3rd gen goggles and a 4th gen starlight weapon's sight. ATN has some attractive prices and equipment but their sales rep (over phone) provided some vague responses to my questions. I didn't know if the ATN PS 15-3 allowed the use of prescription eyeglasses. I wear them. I have also heard a few complaints about their weapon sights concerning poor design in handling recoil. I am interested in the ATN MARS6X-4, and if is not able able to stand recoil greater than a 308, then it is worthless. This seem odd and perhaps persons who complained just received defective scopes? If anyone has some advice on this equipment, please respond. THX!