So I was able to pry a 1965 Marlin Golden 39a from my dad's hands...coaxed him out of it for a Jap A-5 that I had collecting dust. He maintains that it's been super accurate for him over the years, and it hasn't been shot too much. I'd like to shoot it for rabbits, squirrels, various creatures, as well as plinking. I'm certain that the factory sights will suffice for most shooting, but they are certainly crude. I'm wondering if a Williams or Lyman sight would help me to get better shots off, and shoot more consistently. For my application, do you all think it would be helpful, or is it something that won't provide much improvement? I'm not interested in putting a scope on, so it's either factory sights or a Lyman/Williams...unless there is an alternative that you all think is preferred.