Sightron
A number of years ago when they came out, everybody raved about how "bright" they were. They were bright, but the resolution was pretty poor.
Shooters stuck nylon screws in them to stabilize the erector tube, I took several apart, typical Oriental design, ball and socket erector tube mount. The front Objective shared the same design as a Weaver, B&L, Tasco, etc. The big difference was the reticle mounts directly on the erector tube assy.
In short, there is nothing remarkable, or unremarkable about them, just a typical lower cost, ($400 range), BR Scope........jackie