Base only of the Gehmann 501 Lens Holder System You will receive the black base ONLY, no lens holder or steel rod * Gehmann version – to be fitted to rearsights with the latest Gehmann irises with the detachable rear thread and without the 1.5x magnified diopter The detachable steel rear thread of your iris is removed with the factory spanner, and the adaptor fitted * Other version – to be fitted to rearsights using irises from other manufacturers (can also be used with Gehmann irises)
