TM 9-1330-200-12/TM 1330-12/1A
Section II. DESCRIPTION AND FUNCTIONING
1-3. General
(5) Practice and training hand grenades.
These grenades are for training personnel in use,
care and handling of service grenades. Model des-
Grenades are small bombs of a size and shape con-
ignations of the grenades are indicated in table 1-4.
venient for throwing by hand or launching from a
rifle or vehicle. The hand grenade is thrown by
(6) Non-lethal hand grenade. This gre-
hand. However, some hand grenades may be
nade is used for diversionary purposes.
launched from a rifle grenade projection adapter
and by a special grenade cartridge. The rifle gre-
c. Functioning.
nade is launched by a special grenade cartridge
from a rifle. Hand grenades are used to supplement
(1) General. Release of the safety clip and
small arms against an enemy in close combat, for
removal of the safety pin permit release of the
producing a riot control agent, for smoke screening
safety lever. When the grenade is thrown, the
and signaling, and for incendiary purposes. Rifle
safety lever is released and is forced away from the
grenades are used against armored targets, fortifi-
grenade body by a striker acting under the force of
cations and personnel, and for screening and sig-
a striker spring. The striker rotates on its axis, and
then strikes the percussion primer, initiating the
authorized hand and rifle grenades, respectively.
fuze. The grenade then functions within the time
lists time to grenade functioning after release of
safety lever.
Grenade fuze M227 is restrained from functioning
1-4. Hand Grenades
by the safety cotter pin, sliding safety latch, and
handle. The exhaust port seal is removed and dis-
a. General. All Army hand grenades have
carded immediately before pulling the safety cotter
pyrotechnic delay fuzes except for Grenades M68,
pin. When the safety cotter pin is removed and the
M59 (M33 with Fuze, M217) (M33A1), M57 and
safety latch is pushed rearward (fig. 1-3) from the
M26A2 which are assembled with an impact-
lock pin, the handle is unlocked and the GRE-
delay-type fuze. A grenade assembled with a pyro-
NADE IS ARMED. Releasing the handle causes
technic delay fuze will not function by impact
the arming pin spring to eject the arming pin. This
action. A grenade assembled with an impact-
releases the firing pin, allowing the firing pin to
delay-type fuze will function on impact action after
activate the primer. The primer ignites the first-fire
an arming time of 1.6 seconds. If the grenade fails
mixture, which flashes and ignites the delay mix-
to function on impact, the secondary pyrotechnic
ture. This, in turn, ignites the ignition mixture. The
delay feature of the fuze will function the grenade
ignition mixture burns through an aluminum foil
within 3 to 7 seconds.
shield on the bottom of the fuze and ignites the
granulated CS pyrotechnic mixture in the grenade
b. Types. There are six types of hand grenades
body. The burning mixture builds up pressure and
opens the tape covering the exhaust port. This
pressure also forces release of CS from the grenade,
(1) Fragmentation hand grenades. These
while jet action causes the grenade to move quickly
grenades are used to produce casualties by high
and erratically along the ground. The M48 func-
velocity projection of fragment.
tions in the same manner as the M47, except that
the M48 emits red smoke.
(2) Illuminating hand grenade. This gre-
1-5. Rifle Grenades
targets.
a. General. Rifle grenades (fig. 1-4) are fin-
(3) Chemical hand grenades. These gre-
stabilized. They are launched from a rifle. The
nades are used for incendiary, screening, signaling,
propelling force for the grenade is provided by a
training or riot control purposes.
special gas-producing grenade cartridge, which is
loaded into the rifle chamber. Rifle grenades
(4) Offensive hand grenade. This grenade
is used for blast effect.