AHG diopter sleeve 50mm diopter extension

ahg-DIOPTER SLEEVE for the rear adjustment of diopter lenses: The ahg diopter sleeve is available in lengths of 30 and 50 mm. They can be screwed into any commercially available diopter and extend the diopter lens backwards, allowing for a more comfortable and relaxed head position when shooting from a rest. The individual sleeves can also be combined with each other due to the threads to achieve different length combinations.