Its a forward assist. A feature that the designer did not want to put on the rifle in the first place. The army wanted it. It helps force shut the bolt when running the rifle dirty. It is not for range. For more info about forward assist
[ Ссылка ]
![](https://i.ytimg.com/vi/Z2a2qbIoszg/mqdefault.jpg)
Its a forward assist. A feature that the designer did not want to put on the rifle in the first place. The army wanted it. It helps force shut the bolt when running the rifle dirty. It is not for range. For more info about forward assist
[ Ссылка ]