Here's additional rear sights that's produced by gunsmith from Germany. It might be added to any shotgun with vented rib barrel. I have never noticed far better rear sight for vented rib barrel. Another issue to think about is which you could load more rounds straight away after the beginning https://technologytrends60594.blognody.com/29081778/the-single-best-strategy-to-use-for-benelli-600-parts