I "own" one. Really since I am underage (To have a gun, I am old enough to be on imgflip) I had my father register 2 glock 17s' in his name, but I gave him the money; so I keep the guns in my room, I am a good shooter, and I am well educated in gun safety, and I am sane enough to keep it in my room underage.
Also, I rented that rifle. I'm planning to buy it tho.
https://www.basspro.com/shop/en/smith-wesson-mp-15-22-sport-rimfire-rifle