To unload the rifle and make it safe, place the selector lever on the SAFE position (fig. 3-5); and remove the magazine by pressing the magazine catch

Figure 3-23.-Rear sight aperture.

Figure 3-24.-Windage drum.

button (fig. 3-6). Pull the charging handle to the rear (fig. 3-7), ejecting any round from the chamber. Inspect the chamber and receiver to ensure that it is clear. Releasing the charging handle will allow the bolt to close. To keep the bolt open, depress the lower portion of the bolt catch before returning the charging handle forward (fig. 3-8). The rifle is clear only when no case or round is in the chamber, the magazine is out, the bolt carrier is to the rear, and the selector lever is on the SAFE position.