These are accurate drop-in barrels with finished chambers and do not frequently need any gunsmithing. In rare circumstances, the fitment can be needed. In that situation, be sure to see your neighborhood gunsmith for suitable installation. Beretta ninety two Series third Gen. Prolonged Threaded Barrel 9mm available for purchase. Created https://gunsandammunation.com/shop/beretta-typhoon-muzzle-brake-1-2x28-9mm/