Don't know the specific model, but there is a night-sight Novak lo-mount that will fit the g.i. dovetail without requiring modification of the slide. Brownells sells it along with a white-dot version and an all black version. It lookes generally like a typical Novak sight, but because the slide isn't modified, the sight perches kinda high on the slide and doesn't look nearly as "cool" as the more integrated versions. The front sight has to be replaced with a taller sight which can also be a staked sight with a night sight insert if you choose.