Hey guys new to this forum and looking for some help I just picked up a HK/Benelli M1 Super 90 it’s missing the rear ghost ring sight. Well I think that’s what they came with when H&K was dealing with them, However looking at my Benelli M1 (side by side) the screws holes wont line up. on the HK the screws holes are 9/16 in. apart. and the Benelli M1 screws are 1 and 3/4 in. apart. Can anyone tell me what H&K put on from factory and where I could pick one up? I really don’t want to get the wrong one and have to drill/tap the holes. THANK YOU FOR ANY HELP. ill try to get some pictures up when i get my posts to 5. Thanks again.