Experience showed the Germans that the average submachinegun was too muscular for reliable accuracy within a thousand feet, which made it sketchy in close combat situations.
德国人的经验表明，一般的冲锋枪太过笨重，一千英尺内无法保证精准度，不利于近距离战斗。
2
During early 1980s the basic design was improved with the introduction of the Model 12s submachinegun, which had improved safety arrangement and several other minor changes.