Hi Cody and welcome. Yes, you can. I would recommend an AR-10 over an AR15. .308 will give you superior hunting performance/results: budsgunshop.com/product_info.php/products_id/158025/radical+firearms+rbr1030820+rf-10+308+win+20+20+1+black+hard+coat+anodized+6+position+mft+minimalist+stock --------- Cheers, stay safe and enjoy!

Hi Cody, yes sir, many people use AR's as hunting rifles. As to the best one, there is no one size fits all answer. That depends on many things, including what game you are pursuing, how far you intend to shoot, etc.
I suggest to google the game you are hunting and other specifics to find a gun good for you.
Stay safe & have a great day!