R.I.G.S. M-LOK Handstop - NEOMAGAmerican made and precision machined, this handstop combines lightweight construction, advanced cable management, and modern ergonomics to deliver unmatched performance on the range or in the field. Why Choose the R. I. G. S. Handstop? The R. I. G. S. Handstop represents the perfect blend of form and function for the modern rifleman. Unlike bulky polymer stops or overly aggressive alternatives, our design provides: Positive Indexing Ergonomic profile