They were and are good weapons . They were commercial , not military weapons when first made. They were hand fitted and the bolt lockup is sensitive to mud/sand/dirt . When the Marines first recieved them , not knowing about the hand fitting , they striped them and cleaned them and got the parts all mixed up. The ones that everyone talks about being thrown in the river were these mixed up ones that were hopelessly mismatched and it was done after the new batch of them had arrived .
Chris