I have two of those, both by Century Arms. Whatever you do, avoid buying anything made by Century Arms. I had to have the recievers reworked in order to prevent constant feed problems that resulted in stoppage. CA didn't bother to reproduce the feed ramps that lead the bullet into the chamber. CA does not stand behind their product. I had to get the rework done by an independent gunsmith.
Thanks for the info. I thought CA was an importer, not a manufacturer? I guess the line is blurry. I saw an AK back in the 90s that was butchered into a “sporter” by the importer. (It even had “SPORTER” crudely electropenciled on the side of the reciever, apparently by a 10-year-old.) But is still worked well, unlike your L1A1.