本规范规定了性能要求，并确定了前握把/双脚架（以下简称前握把/双脚架或FGB）的验证程序。FGB为操作员提供了一个双重实用工具，作为M4和M16系列步枪的前握把和双脚架。

This specification prescribes the performance requirements and identifies verification procedures for the Grip/Bipod, Forward, hereafter referred to simply as the Forward Grip/Bipod or FGB. The FGB provides the operator with a dual utility as a forward grip and bipod for the M4 and M16 series rifle.