I'm looking for suggestions for rifle sights for my H&R Topper 88 20ga. The barrel is a 3" Chamber 26" Length with the following ODs: Muzzle end 0.730", Chamber end 1.110", Just in front of the chamber 0.780".
I've searched through Numrich, Midway, Brownells, and even Sarco, looking for something that will work, and I just can't find any combinations that will do the job. The trouble isn't the front blade or ramp, I can find compatible ramps with a proper diameter. The problem comes in looking for a rear adjustable sight. About the closest I am finding is the options from Williams Gun Sight Co. But they jump from a 0.660" ID to a 0.856" ID. And unfortunately are made of Aluminum, creating a situation where they might be able to be epoxied on, but are really too small to do the job.
Just to be clear on why I am specifically looking for rifle sights, I have installed a 18" chamber adapter for 7.62x25, and am looking for a more accurate method of using the "rifle". See this thread if interested.
Does anyone have any suggestions? I'd like to keep with a blade and notch combo. But I'm open to blade and aperture, or even fiberoptic sights if that is what I have to settle for.