[HammerT]

They mentioned the temperature issue in the article I mentioned – but only in context of the green – but the same physics would certainly have an adverse effect on both.

Part of my interest in the subject matter has to do with laser sight/light combos – so that’s an interesting idea.

[SENTINEL]

The Streamlight TLR-2s has a built-in laser, red I believe. Don't let the prices vs. Surefire fool you, Streamlight is top-notch stuff.

I just got my new TLR-1s HP (designed for long range) last night and it throws a precisely centered beam strong enough for use with iron sights out to 400 yards ! Only $105 on amazon.