i ended up with one and don't know much about it. i know that they stopped making them and you don't find much on info and cost. i'm sure someone on here knows about these.
Use to want one & its been years since I seen one . Use to be available in other calibers as well(45 magnum,.44 magnum .357 magnum & i think the 45 acp etc.) was IMI biggest competition for awhile (Desert Eagle) use to run around a grand or so new but the 50 cal is hard to find & went out of production in 1999(45 win mag Grizzlys are running anywhere from 1500 to 2000$)