Later, the chrome plated carriers were dropped in favor of Army issued notched and parkerized carriers. 后来,镀铬的机框被放弃了,因为陆军配发了装配复进助推器槽口以及磷化处理过的机框的试验型。
Dr Schuh's team found that chrome benefits from a crystalline structure that is exceptionally small and this prevents its atomic rows from slipping. 当今环保规定已显然增加了镀铬工业的成本,所以应用大量铬的工厂设法去寻找替代品,但目前还没有发现光泽和硬度与铬相当的物品。