They are high quality red dots made in Germany before other companies made similar looking devices . The price has dropped since the new version (III, IV?) which isn't available here in the US. I'm considering buying one for a new project gun build based on the Savage 220-A 20 gauge. As discussed, they were partnered with Trijicon's ACOG sights. That should tell you something about their quality. I see them listed for $250 at different sites. On the downside, any warranty work or repairs must be done in Germany unless one buys from DocterUSA at a considerably higher price.