In the design of assault rifles, took into account the problem of dust, to more effectively sealed in the Rafah receiver slot machine handles I. (I is not throwing shell) and the Fang Chengai.

• 在突击步枪的设计中，曾考虑到防尘的问题，为更有效地密封，在机匣的拉机柄导槽（不是抛壳口）上加了防尘盖。