I have an older .22 rifle where I'd like to use it from bedroom window to shoot Red Fox. Without night scope using cheap flashlight in while standing in a backlit room made for poor aim. I need glasses too, but ignore that issue for now. My kids watched with me what the fox was doing over about 10 minutes. I got three shots off where fox kept coming back after rooster closest to the house. Rolled fox on the third. Are there newer night scopes adaptable to the older light rifles? The rifle is pushing 100 years old.