These are definitely correct fall-in barrels with concluded chambers and do not commonly need any gunsmithing. In unusual scenarios, the fitment could be expected. In that case, please see your neighborhood gunsmith for good set up. Beretta 92 Sequence third Gen. Extended Threaded Barrel 9mm on the market. Compensator fitting https://johnk679bgi2.bloginder.com/27416632/not-known-factual-statements-about-beretta-apx-muzzle-brake