Write an article based on this "Determine if you're eligible to buy a gun. Have a background check performed at a Nevada gun dealer. Wait for the results of your background check. Purchase your gun."

Article:
As a threshold matter, you must be at least 18 years old to buy a firearm (21 if you want to buy a handgun). Beyond that, there are specific categories of people who are prohibited from owning firearms. Generally, you can't buy a gun in Nevada if you:  Have been convicted of a crime punishable by more than 1 year in jail Are a fugitive from justice Are an addict or unlawful user of controlled substances Have been found mentally defected by a court or committed to a mental institution Are illegally in the US Have a dishonorable discharge from the military Have renounced your US citizenship Are subject to a restraining order for domestic violence, harassment, or stalking Have been convicted of domestic violence Are under indictment for any crime punishable by more than 1 year in jail Generally, the purpose of a background check is to make sure that you aren't a member of one of the categories of people who aren't allowed to buy a gun. However, your word isn't good enough. Nevada gun dealers take information from you and put it through the system to find out if you have anything in your background that would indicate you shouldn't be able to purchase a gun.  Beginning in January 2020, you also must have a background check for private gun sales. These background checks can be completed at any gun dealer. You'll pay a fee of $25, as of 2019, to have your background check conducted. This fee is not refundable regardless of the results of your background check. You may get the results of your background check in a few minutes. However, in some cases, it could take up to 3 days. Your background check will come back with one of three results:   Proceed: You have passed the background check and can purchase a gun  Unresolved: The background check system could not reach either "proceed" or "denied" status. If your background check remains unresolved for 3 days, you can still purchase a firearm.  Denied: You cannot purchase a firearm. You can appeal this decision if you think it was made in error. The dealer will have paperwork you can fill out and submit. Provided the results of your background check allow your purchase to proceed, you can buy a gun at any Nevada dealer. After January 2, 2020, you must also pass a background check before you can buy a gun privately from an individual. You also must present a valid photo ID issued by the state of Nevada.  You don't need to pass a background check to buy ammunition in Nevada. You don't need to have a license to possess a gun nor do you have to register your gun. You don't have to buy your gun right away. Each background check is valid for up to 30 days for a single transaction. A single transaction can include multiple guns. However, if you want to purchase more than one gun in separate transactions, you'll need a background check for each transaction.