Assertion: aftermarket sight | /r/HasProperty | available
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text: As the Swiss have a militia army where soldiers sometimes keep their service rifles for a lifetime and also compete with their service rifle many aftermarket sights were available: Waffenfabrik Bern made the "S" and "K" (Klammer) diopter sights, Wyss makes the "W" diopter and Furter, Haemmerli and Gruenig and Elmiger made now rare special windage and elevation fine-correctors, Sahli and many other made elevation fine correctors and these days a company by the name of Swiss Products in the United States makes a clamp-on diopter which was recently approved for use at official Swiss shooting matches.