Yes, the Trijicon AccuPoint TR-25 1-6x24mm Rifle Scope would function fine on a .308 Scar rifle. I'd recommend using a high quality optics mount to ensure the optic retains zero/mounted. Email us at Techsales@opticsplanet.com for further assistance.
To mount the Trijicon AccuPoint TR-25 1-6x24mm Rifle Scope to an AR with BUIS I recommend using the cantilever mount at the link below. The Trijicon AccuPoint TR-25 1-6x24mm Rifle Scope has a low profile throw lever built into the magnification ring. So an aftermarket through lever will not fit around the magnification ring. However, Trijicon does make an extension attachment for the throw lever. This attachment can be found at the second link below.
https://www.opticsplanet.com/scalarworks-leap-scope-mount.html?_iv_code=39N-MT-LSCP-SW0700
https://www.opticsplanet.com/trijicon-accupoint-accupower-magnification-ring-lever.html
Depending on the model, it ranges from .18 MOA to .6 MOA.
Yes, AccuPoint scopes are "daylight bright" as they use fiber optics and tritium to illuminate the reticle.
That is completely dependent on what the scope is being mounted too as there are thousands of mount options avialable. Please email us at techsales@opticsplanet.com with the make, model and caliber of your firearm and we can provide mount options for you.
Please contact us at techsales@opticsplanet.com as we need more information regarding desired usage distances.
It is a second focal plane reticle.