I read about figment issues with the Williams front peep on accuras as well. I went with a lyman 17 front peep hood, marbles sight ramp in the proper size for my barrel diameter, and Lee shaver inserts. Excellent setup.
The CVA/williams rear peep that comes with these rifles has an aperture that’s too small. I removed it and run the rear sight without an aperture screwed in. I get a great sight picture with a small ring of light between the front and rear peeps.