It's been suggested elsewhere that Chad (who was inside the house at the time), may have insisted it couldn't have been a real gun, probably just a paintball gun. He had a lot of influence over her.Yes, I think it was a real gun. Why would someone wear a ski mask to sneak up and scare someone with a paintball gun? I think it was a real gun and maybe the only way Tammy could make sense of it and not be even more freaked out was to think it was a paintball gun?
I do wonder if she's seen paintball guns before or used on to know exactly what it was or if she guessed.
JMO