Saw this this week at a garage/estate sale........no box no papers...just the scope....I don't do long rifles and I don't hunt...and growing up in my county in New Hampshire when I did hunt we could only hunt with shotguns....so I have zero knowledge of scopes. This one is big and long and it has a battery thingy on the top. I don't know how to turn it on...so don't know if the battery even works. I have 1 sks modified...already with a scope that came with the rifle....and thats it for me......so I need some help here....