FWIW, they are both superb large frame gas precision rifles. We build M110 rifles and also the L129A from LMT. They use a lot of interchangeable parts. KAC seems to grab headlines, while LMT just does good old-fashioned great work with a Midwest sense of humbleness. I am pretty sure LMT was building parts for the KAC M110 program in the early 2000s, and there is some evidence that the building relationship also went the other way as well.