The cheapest AR-15 is $1,870.. How does Salvador Romas get one?

The distance between Uvalde, TX and where Salvador Romas bought his guns at Daniel Defense in Black Creek, GA. It is 1,218 miles and an 18 hour 50 minute drive. The cheapest Daniel Defense AR-15 is $1,870 & most expensive is $3,390. How does an 18 year old get one??