The Llama in question is a Spanish-made, almost-copy of the 1911.
In its day, it was an inexpensive gun.
Its parts do not interchange with any US-made Government Model known to man.
Llama quality was inconsistent, which was true of most Spanish-made pistols.
I offer, as an example, my own Star PD, a Spanish-made .45 almost-copy of a 1911, only smaller.
I have been reliably told that spotty and inconsistent Spanish quality control resulted in sears and hammer which occasionally came out of heat-treating not surface hardened, but rather hardened all the way through, and thus brittle. One can never know whether the part(s) in one's gun are wrongly heat-treated until one of them breaks catastrophically, at exactly the wrong moment.
My Star PD is a "safe queen" now, relegated to emergency-backup service.