The New York Times outlines what you need to do in various countries to obtain a firearm:
United States 1. Pass an instant background check that includes criminal convictions, domestic violence and immigration status. 2. Buy a gun.
Canada 1. To buy a handgun, prove that you practice at an approved shooting club or range, or show that you are a gun collector. 2. For any gun, complete a safety course and pass both a written and a practical test. 3. Ask for two references. 4. Apply for a permit, and wait 28 days before processing begins. 5. Pass a background check that considers your criminal record, mental health, addiction and domestic violence history. 6. Buy a gun. If you bought a handgun, register it with the police before taking it home.
Israel 1. Join a shooting club, or prove that you live or work in a dangerous area authorized for gun ownership, including certain settlements. 2. Get a doctor’s note saying you have no mental illness or history of drug abuse. 3. Install a gun safe. 4. Release your criminal and mental health history to the authorities. 5. Buy a gun and a limited supply of bullets, usually around 50. 6. Demonstrate that you can use your gun or a similar gun at a firing range before taking it home.
Actually, there is one place in the world where it's easier than in the U.S.: Yemen. But that's because they have no functioning government. We're in great company.