Best Mil Dot AR-15 15 Optics
"What's the best scope for an AR-15?"
That's a common question, with too many answers. It has too many answers because it's the wrong question. The question you should be asking is, "What's the best scope in my price range for my AR-15 doing a specific kind of shooting?" Let's start with that. Remember, no one scope is best for everything. Some manage to be good at several things, but the laws of physics and optics inevitably force compromises.
- Shooting 100 yd targets?
- Sniping at 600 meters?
- Competing in 3-gun events?
- Killing gophers on the ranch?
- Taking on a five day hunting trek?
- Taking into combat in a war zone?
First: A more expensive scope is usually made better.
Made of better materials, built to more precise tolerances, with better optics. They are also usually better sealed against the elements, more durable, and often heavier.
Second: A larger objective lens - the glass facing your target - can gather more light.
This means a brighter sight picture for you, especially in low light conditions, and that can make the difference between identifying a target and losing a shot. Of course, that big lens adds to the weight. Glass is heavy.
Third: A larger tube allows more light transmission and usually enables more adjustment for windage and elevation.
But again, a 30mm tube will weigh more than a 1-inch (25.4mm) tube. More importantly, the cross-sectional area is about 39% greater, which means all the glass inside that tube will be at least 39% heavier, and probably more.
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