RL or in this thread?
Real Life, I shot an AK47 when I was 14 (first time shooting a gun but not my first time holding one), my dad was a cop and he let me play with his unloaded Glock 22 when I was 4-6 years old. Joined the army as soon as I turned 18 and been using the standard F-88 Austeyr since. As a weapons instructor though, I get to demonstrate other weapons as well like the AK47, M16A4, M4A1 and others.
Used an SAR-21 in Singapore during a joint training op as well as using a K2 Korean Assault rifle. And that is my weapons experience with rifles only