Hey, Texas,
Front sight on a Car? Shoot. I can't see the front sight on an M14
Trust me - it only gets worse.
What newarguy said is spot on. A good red dot is great. Or an ACOG. I got an ACOG on a carbine that lets me shoot to MOA (almost) with these old eyes and match ammo. (It is a Wilson match barrel too).
The real key is how you mount it. The best way is a flattop upper to put the sight on the right plane with the barrel and cheekweld. Candidly, I think this is critical. Here is one I like a lot:
Or any reddot.
In truth, you get what you pay for. With red dots, the differences are:
Reliability. Cheap ones break sooner and don't take any shocks (drop your rifle?).
Stay sighted in. Good ones DO. And they are easy to sight in.
But even cheap ones can make it fun to shoot aghain as out eyes wear out.