[ARCHIVED THREAD] - Set screw FSB

Posted: 2/27/2010 5:10:16 AM EDT

I've noticed on some of the big bore AR's that they are using set screw through the bottom of the FSB to lock them down... Specifically, .458 SOCOM, and .50AE with standard A2 type front sights... Does anyone know what size these screws are?... Thought it would be cheaper/easier way to attach the front sight base on my project, barrel isn't drilled for taper pins