I started in guns at age 8 when my dad intoduced me to his winchester model 72, .22lr. I put about 1000 rounds thru it up until he gave it to me at age 24. My Dad never owned a hand gun. But when I left the country for the city in 1999, I bought my first handgun. Now I own four of them.
This year I bought my first AR platform. I was in the Army for 20 years, and can teardown a M-16 or M-4 way beyond field strip.
So I bought a stripped lower and built my AR-15. It is much like a M-4 but no full auto. Or auto burst.
Having said that, it is a hoot to shoot. But it will spend a lot of time in the safe, until the day that the government goes over the line.
No one will ever get into my gun safe. Not as long as I live. Unless the horrible thing happens.