Te firearm is a 9mm Highpoint carbine, a nice shooter out to 50 - 70 yards. It uses the same mags as the inexpensive Highpoint pistol so extras are easy to find.
I picked mine up about 6 years ago for $175. At that price, it was a fairly painless purchase.
I took it out to the range and a let a rifle snob shoot it, he didn’t like it because it wasn’t very accurate. Which is fine, you’re not trying to take rabbits at 50 yards with the thing.