Write the next sentence in the following story.

How to buy firearms online legally
Compare different sites.
There are a lot of sites set up in order to help you find the lowest price on a firearm.
Make sure the site you choose is an authorized ffl dealer.
Once there, compare your options, choose the gun that you want, and add it to your cart. After entering your payment and shipping info, email a copy of your local firearms dealer's ffl.