Auto Ordinance mad a total of TWO pistols that worked 100% out of the box. and I owned both of them.
They were good pistols. I had traded around and got them at two different local gun shows. I had about $150 invested in each.
They weren't as well made as a Colt 1991A1 and they would not have held up as well. If you can find one that runs well, it would be a good house gun. But if you are looking for a .45 that will shoot tens of thousands of rounds you'll have to be prepared to replace some parts in an AO.
I replaced the thumb safety, trigger, sear, hammer, disconnector, and ejector on mine. It took a little bit of work to get the ambidexterous safety on one of them. Everything didn't line up quite right. On the 2nd one I had no problem however.
The hammers seemd a little soft and the ejectors were showing wear . The extractors however were just fine.
The slide/frame rails were somewhat gritty feeling but a touch or Dremel Polishing Compound with a couple of drops of Clenz-Oil and after 100 rounds they were fine.
Even though most people seem to hate them. I'll recommend them if you can find them at a good price.
Just my tuppence, YMMV