MIL-STD-1913 rail's should all be machined to a within a pretty tight tolerance, and rings designed to fit them should also adhere to the spec.
When one manufacturer cuts corners, things no longer...
Type: Posts; User: quentin
MIL-STD-1913 rail's should all be machined to a within a pretty tight tolerance, and rings designed to fit them should also adhere to the spec.
When one manufacturer cuts corners, things no longer...