Low power scopes are light enough, faster than irons except at point blank range, and even if your eyes are good give you about 30-45 minutes more of shooting time per day.
The Weaver 1-3's are solid, light. The Leupold 1.5-5x are also very light and they are discontinuing the German #4 reticle which is a great one for woods use and even in 15-20 years you'll still be able to see that heavy German reticle.
