I recently acquired this in a collection that I bought. Amongst the collection was a new unfired Barrett M82 from 2004. The seller stated that he had an optic to go with it and presented me with this. I know it is a US optics and I believe that it is the SN 3 model. The scope does not look to ever have been mounted and it does have a Horus vision reticle. I believe to be H 27 or a variant of such. All of the SN 3 models that I see typically have a larger elevation knob( Erek) . This one has capped turrets that appear to be MIL based where is everything I see in literature showed MOA , can someone shed me a little info on this? Anyone have an idea what it’s worth? Us Optics is calling me back Monday with a little data, but I figured u guys would know .