These are typically correct fall-in barrels with concluded chambers and don't frequently have to have any gunsmithing. In scarce instances, the fitment might be demanded. In that scenario, be sure to see your local gunsmith for right set up. Beretta ninety two Series third Gen. Extended Threaded Barrel 9mm available. https://gunsandammunation.com/shop/beretta-typhoon-muzzle-brake-1-2x28-9mm/