Figure 13-6.--External nomenclature of the M60 machine gun.
The external nomenclature of the M60 machine gun
is shown in figure 13-6.
The M60 has a front sight permanently affixed to
the barrel. The rear sight leaf, as shown in figure 13-7,
is mounted on a spring type of dovetail. It can be
folded forward horizontally when the gun is to be
moved. The range plate on the sight leaf is marked for
each 100 meters, from 300 meters to the maximum
Figure 13-7.--The rear sight.
effective range of 1100 meters. Range changes may
be made by using either the slide release or the
elevating knob. The slide release is used for making
side of the gun is used to pull the bolt to the rear. Always
major changes in elevation. The elevating knob is
remember that the cocking handle must be returned
used for fine adjustments, such as those made during
manually to its forward position each time the bolt is
zeroing. Four clicks on the elevating knob equal a
manually pulled to the rear.
l-mil change in elevation. The sight is adjustable for
windage 5 mils right and left of zero. The windage
The flash suppressor is affixed to the muzzle of the
knob is located on the left side of the sight. One click
barrel. The ribs of this suppressor vibrate during firing
on the windage knob equals a 1-mil change of
and dissipate flash and smoke.
deflection.
The M60 can be effectively fired from the integral
A safety lever is located on the left side of the trigger
biped mount (fig. 13-6). The hinged shoulder rest
housing. It has an S (safe) and an F (fire) position. On
provides support for the rear of the gun. The movable
the S position, the bolt cannot be pulled to the rear or
released to go forward. The cocking handle on the right
carrying handle provides a method for carrying the gun
13-6
