I had one in 45 ACP, it went bang every time. Couldn’t say the same about my Metro Arms.
I have two of them, a 9mm carbine and a 45acp carbine, both guns are fun as hell and I don't recall ever having a misfire I could attribute to the gun itself.
It was interesting to see the amount of abuse the gun could take.
I sold a lot of those Carbines and quite a few of the pistols back when I ran my hometowns largest gun store many, many years ago.
Never once had a customer return one. And quite a few brought the friends back to buy one after shooting theirs.
They were “cheap”. But evidently worked fine.
Never owned or shot one myself.