Your Model 17-3 would use grips pictured below. They should have black washers behind the medallions. The checkering would not have diamond patterns in them. The grips below have what as known as football cutouts for shell extraction on the top of the left grip panel. Either checkered or smooth design would be appropriate for the gun. The cost would run anywhere from $75 to $175 depending on the type of wood (Walnut or fancy wood).