If the rifle was a gift, it shouldn't hurt to buy a decent optic. As you know, 7.62 can really reach out. I'd get a 1 to 6 or 8 power, tactical type unit. 2-cents.
Being a gift, def makes it easier to splurge. If it was my Mopars I’d already spent to much on them. I’m applying for the discounts at a few manufacturers now thanks to @72Duster440