There's also a fellow named jdm033056 on Berettaforum.Internet that sells a rail that replaces the rear sight on the highest of your gun. The neat factor about his rail is the fact that Additionally, it acts like a rear sight by by itself when almost nothing is mounted to it. https://beretta92threadedbarrelfo88530.collectblogs.com/72604132/not-known-factual-statements-about-beretta-92-threaded-barrel-for-sale