TruGlo dos not provide the adjustment values of their Crossbow Red-Dot Sight. I would recommend contacting them directly for more information.
Yes, instructions are included, and may also be downloaded at
http://www.truglo.com/images/Instructions%20-%20TG8025-TG8030-TG8040.pdf
The battery is accessed by removing the large cap on top with the coin slot, that knob conterols the brightness.
The other two knobs are windage and elevation adjustments.
Mark H.
The top dot is for approximately 20 yards, the middle dot is for approximately 35 yards, and the bottom dot is for approximately 45 yards. The dots cannot be changed for different distances.
The mount for this is intended for weaver rails, though it can still be mounted to a picatinny rail.
This will mount to it, and the center dot will work fine, however the drop dots will not be usable for an AR. You might be better off with their normal version for firearms here: https://www.opticsplanet.com/truglo-red-dot-dual-color-sight-1x30mm-5-moa-red-green-reticle-matte-black-tg803.html