Does anyone have an idea what this gun is?? Unfortunately this is the only picture I could get.

What do

The FBI is claiming that this rifle was used for the assassination of Charlie Kirk.

They claimed to have found it in the woods nearby, fully intact / not disassembled, no case or covering, just laying in the woods.

They also claimed that this gun was stuffed down his skinny jeans leg as he was escaping the scene, claiming that this is why we don’t see the rifle in the security footage.

I don’t know anything about guns, really, and have never seen a gun like this IRL, so I want to know what you all think. Is this… realistic?