I had one in 9mm. It was semi only.
Basically a piece of junk. Well not completely. It was accurate and reliable. With every shot, the trigger slapped my finger really hard.
I had a Browning Hi-Power at the same time. The Browning was svelte with a perfect grip. Well balanced and smooth functioning, every thing the Ingram was not.
I shot a .45 version once. Semi-only until it decided to self convert to Class 3 on it’s own. Fortunately the magazine was almost empty. The first two shots were on target, but the rest went somewhere else.