I take it to be the use of the internet. Not many guns are sold on the internet.
What about no background checks on Gun Burglary Loophole transfers?
I beg to differ......You may have never heard of Gunbroker (including full auto and silencers), GunsAmerica, Sportsmansguide, Atlantic Firearms, and Centerfire Systems...... that's just the few I know of without even doing further Internet search - and the list goes on and on. Most gun shops I know that have a website will ship to the FFL nearest you.
Thousands upon thousands of guns are sold on the Internet.